Answers for the Self‑Employed (OSVČ) in the Czech Republic: Taxes and Insurance in 2026 Without Stress.

OSVČ is an abbreviation for self-employed individual. It refers to a natural person who performs gainful activity independently, under their own name, at their own responsibility, and for the purpose of making a profit in accordance with the valid legislation of the Czech Republic.

An OSVČ works for themselves, secures contracts on their own, represents themselves to clients under their own name, and bears full responsibility and entrepreneurial risk, including liability for obligations with their entire personal property.

How OSVČ is defined by law
The legal status of an OSVČ is based mainly on the following legal regulations:

• Act No. 455/1991 Coll., the Trade Licensing Act,
• Act No. 586/1992 Coll., on Income Taxes,
• Act No. 155/1995 Coll., on Pension Insurance,
• Act No. 592/1992 Coll., on Public Health Insurance Contributions.

According to these laws, an OSVČ is a person who:

• performs the activity continuously (not occasionally),
• acts independently (is not in an employment relationship),
• bears full entrepreneurial risk,
• is liable for obligations with their entire personal property.

What activities can be performed by an OSVČ
An OSVČ does not have to be only a “tradesperson.” Typical examples include:

• trades (craft, regulated, and free trades),
• liberal professions (doctor, lawyer, tax advisor, architect),
• copyright and artistic activities,
• agricultural production,
• business activities under special laws.

How OSVČ works in practice
An OSVČ:

• invoices clients for services or products,
• pays their own health and social insurance contributions,
• files a tax return (or uses the flat-rate tax regime),
• keeps tax records or applies expense lump sums,
• is not protected by the Labor Code like an employee.

An OSVČ can be any natural person who meets the statutory conditions set out by Czech legislation and carries out self-employed gainful activity under their own name and at their own responsibility.

Basic legal requirements
To become an OSVČ, a person must primarily meet the following conditions:

• minimum age of 18 years,
• full legal capacity,
• clean criminal record (assessed mainly for trades regulated by the Trade Licensing Act).

Who can operate as an OSVČ
An OSVČ can be, for example:

• a person running a business as a main activity,
• an employee (OSVČ as a secondary activity),
• a student,
• a person on parental leave,
• a old-age or disability pensioner,
• an unemployed person (subject to meeting labor office conditions).

The law does not distinguish between professions or levels of education; what matters is meeting the legal requirements and holding the authorization for the given activity.

Restrictions and special cases

• Foreign nationals may become OSVČs provided they meet the conditions for residence and business activities in the Czech Republic.
• Some activities require professional qualifications, experience, or special permits (regulated and licensed trades).
• Legal entities (e.g. limited liability companies) cannot be OSVČs.

An OSVČ can therefore be practically any adult person with full legal capacity who meets the statutory requirements and has authorization to perform the given activity, whether alongside employment or as their main source of income.

OSVČ and an employee represent two fundamentally different ways of performing work, differing in legal status, responsibility, remuneration method, and obligations toward the state.

OSVČ – working under one’s own responsibility
An OSVČ performs activities independently as a business owner. They do not work for an employer but for their own clients.

• works under their own name and at their own responsibility,
• sets their own working hours, prices, and scope of work,
• issues invoices for services or projects,
• pays their own taxes, health insurance, and social security contributions,
• is liable for obligations with their entire personal property,
• has no statutory entitlement to paid vacation, sick leave, or severance pay.

Employee – work in an employment relationship
An employee performs work based on an employment contract and is in a subordinate relationship with the employer.

• works according to the employer’s instructions,
• receives a salary or wage,
• does not bear entrepreneurial risk,
• is entitled to paid vacation, sick leave, and statutory protection upon termination,
• most taxes and contributions are handled by the employer.

Legal protection and liability
An employee is protected by the Labor Code, which regulates working hours, vacation, notice periods, and occupational safety. An OSVČ does not have this protection and is fully responsible for their business activities.

An OSVČ and a limited liability company (s.r.o.) are two different ways of doing business, differing mainly in legal form, level of liability, administrative complexity, and tax regime.

OSVČ – business as a natural person
An OSVČ is a specific natural person who runs a business on their own behalf.

Typical characteristics of an OSVČ:

• operates under their own name,
• is liable for obligations with their entire personal property,
• has simpler setup and operation,
• pays personal income tax,
• pays health and social insurance contributions,
• keeps tax records or applies lump-sum expenses.

An OSVČ is administratively less demanding and is often suitable for starting a business or for a smaller scope of activity.

s.r.o. – doing business through a company
A limited liability company (s.r.o.) is a legal entity that exists independently of its shareholders.

Typical characteristics of an s.r.o.:

• operates under its own company name,
• shareholders are liable only up to the amount of unpaid registered capital,
• has more complex formation and administration,
• pays corporate income tax,
• keeps double-entry bookkeeping,
• the managing director may receive a salary or remuneration.

An s.r.o. is often used for higher turnovers, greater risk, or when credibility toward business partners is important.

Liability and risk

The key difference lies in liability:

• An OSVČ is liable for debts with their entire personal property.
• In an s.r.o., liability is separate from the personal property of the shareholders.

This is one of the main reasons why entrepreneurs often transition from an OSVČ to an s.r.o. as their business grows.

Taxes and contributions

• An OSVČ pays personal income tax and mandatory insurance contributions.
• An s.r.o. pays corporate income tax and, if applicable, tax on distributed profits (dividends).

Tax optimization is more complex for an s.r.o., but it offers more options at higher income levels.

Summary

• OSVČ is a simpler, cheaper, and more flexible form of business, but with higher personal risk.
• s.r.o. is administratively more demanding, but provides better asset protection and a stronger company image.

Doing business as an OSVČ brings a number of advantages, especially in terms of flexibility, simplicity, and control over one’s own work. This is why OSVČ is the most common form of business in the Czech Republic.

Simple and fast business start-up
An OSVČ can be established quickly, inexpensively, and without complex administration. In most cases, it is sufficient to notify the trade licensing office and register for taxes and insurance.

Low administrative burden
An OSVČ is not required to keep full accounting records (unless they choose to do so voluntarily). In practice, they can:

• keep tax records,
• apply lump-sum expenses,
• or use the flat-rate tax scheme.

This significantly reduces both accounting costs and the time spent on administration.

Flexibility and independence
An OSVČ:

• sets their own working hours,
• chooses clients and projects,
• determines prices for their services,
• decides on the direction of their business.

This freedom is one of the main reasons why people choose to become OSVČ.

Lower tax and contribution burden (in certain cases)
With lower or medium income levels, doing business as an OSVČ can be:

• more tax-efficient than employment,
• less burdened by contributions than operating an s.r.o.

It always depends on the level of income, expenses, and the specific taxation regime.

Possibility to operate as a secondary activity
OSVČ can also be carried out as a secondary activity, for example alongside:

• employment,
• studies,
• parental leave,
• receiving a pension.

In these cases, mandatory contributions are lower, which is a major advantage when starting a business.

Direct control over income
An OSVČ has direct influence over the level of their income – the more and more efficiently they work, the higher their earnings can be. There is no fixed salary ceiling as in employment.

The main advantages of OSVČ lie in simplicity, flexibility, lower administrative burden, and greater control over both work and income. OSVČ is an ideal choice for individuals who want to run their own business independently and enjoy freedom in decision-making.

Doing business as an OSVČ brings freedom and flexibility, but also higher responsibility and fewer certainties compared to employment. It is important to understand these disadvantages before starting a business.

Liability with entire personal property
An OSVČ is liable for their obligations with their entire property, including personal assets. In the event of debts or disputes, there is no separation between business and private property, which represents a higher financial risk.

Irregular and uncertain income
The income of an OSVČ:

• is not guaranteed,
• can fluctuate significantly over time,
• depends on contracts and clients’ payment discipline.

An OSVČ does not have the certainty of a regular salary like an employee.

Lack of employee benefits
By law, an OSVČ is not entitled to:

• paid vacation (you have to finance your time off yourself),
• wage compensation during the first 14 days of illness (the state pays sickness benefits only from day 15; the first two weeks are fully covered out of your own pocket),
• severance pay upon termination of cooperation,
• mandatory sickness insurance (from 2025/2026 it is a fixed part of contributions, no longer a voluntary option).
• benefits provided by an employer.

Everything must be arranged and financed independently (e.g. commercial insurance).

Responsibility for taxes and contributions
An OSVČ:

• files their own tax return,
• monitors payment deadlines independently,
• pays their own health and social insurance contributions,
• bears responsibility for any errors toward authorities.

Although the administration is simpler than for companies, the responsibility lies fully with the OSVČ.

Weaker social security
An OSVČ typically has:

• lower sickness benefits (if they pay them at all),
• lower entitlement to unemployment benefits,
• often a lower future pension than an employee.

Without additional savings or insurance, social security can be significantly lower.

Risk of dependence on a single client
If an OSVČ works long-term for one client, there is a risk of:

• economic dependence,
• risk of being accused of the Švarcsystem ¹,
• loss of income if the cooperation ends.

The disadvantages of OSVČ lie mainly in higher personal risk, income uncertainty, lack of employee protections, and the need to handle everything independently. Doing business as an OSVČ requires a financial reserve, discipline, and a willingness to bear responsibility.

Doing business as an OSVČ is worthwhile for people who want to work independently, have control over their work, and are willing to bear personal responsibility. It is most advantageous in situations where simplicity and flexibility outweigh the need for strong legal protection.

For independent professionals and specialists
OSVČ is particularly suitable for individuals who:

• sell their know-how or services,
• work on a project or contract basis,
• do not need a complex corporate structure.

Typical examples include IT specialists, consultants, tradespeople, creatives, lecturers, or advisors.

For starting entrepreneurs
OSVČ is often the best choice when starting a business because it:

• has low entry costs,
• is administratively simple,
• allows quick verification of whether the business is viable.

The entrepreneur can later decide to switch to another legal form (e.g. an s.r.o.).

For business as a secondary activity
OSVČ is worthwhile for people who run a business:

• alongside employment,
• during studies,
• while on parental leave,
• in retirement.

For secondary activities, mandatory contributions are lower, which significantly reduces risk and burden when starting out.

For people with lower to medium income
At certain income levels and with an appropriate taxation method, OSVČ can be:

• more tax-efficient than employment,
• less costly than operating an s.r.o.

This applies especially when using lump-sum expenses or the flat-rate tax scheme.

For those who want flexibility and control
OSVČ is suitable for people who want to:

• manage their own working hours,
• choose their clients and projects,
• have a direct influence on the level of their income.

This model suits those who prefer independence over the stability of employment.

Doing business as an OSVČ is not suitable for everyone or in every situation. It is particularly disadvantageous when risks, responsibility, or tax burden begin to outweigh the benefits of simple self-employment.

In cases of high financial or legal risk
An OSVČ is liable for their obligations with their entire personal property. If the business involves:

• high financial amounts,
• contractual penalties,
• liability for damages,

operating as an OSVČ can be risky. In such cases, a legal form that separates personal and business assets is often more appropriate.

With very high income levels
At higher income levels, an OSVČ may:

• pay significantly higher taxes and contributions,
• reach the limits of lump-sum expense deductions,
• lose tax efficiency compared to other business forms.

Beyond a certain point, OSVČ may no longer be the most financially efficient solution.

When separation of personal and business assets is needed
If an entrepreneur:

• invests substantial funds,
• plans loans or leasing,
• wants to protect personal property,

OSVČ may not be the right choice, as there is no legal separation between business and private assets.

In long-term dependence on a single client
OSVČ is not advisable in situations where the person:

• works almost exclusively for one customer,
• has fixed working hours and follows instructions,
• does not bear real entrepreneurial risk.

Such a relationship may be assessed as the Švarcsystem ¹, which is illegal and subject to penalties.

When a high level of income stability is required
OSVČ is not ideal for people who:

• need a regular and guaranteed monthly income,
• are unable to build financial reserves,
• prefer the social security of employment.

OSVČ income can fluctuate and is not guaranteed in any way.

When planning growth and employing people
If the business is heading toward:

• rapid growth,
• employing staff,
• building a brand or a company,

OSVČ may become limiting and administratively unsuitable in the long term.

OSVČ is not worthwhile when the business involves high risk, very high income, the need for asset protection, or income stability that OSVČ cannot provide. In such situations, it makes sense to consider another legal form or an employment relationship.

No, not always. OSVČ is the most common, but not the only way to do business in the Czech Republic. It depends on how and to what extent you want to run your business.

When you must have OSVČ
OSVČ is required if:

• you want to do business independently as a natural person,
• you carry out an activity continuously and for profit,
• the activity is not covered by another legal form or exception.

This typically applies to tradespeople, freelancers, consultants, IT specialists, or small business owners.

When you do not need OSVČ
OSVČ is not required if you do business in a way other than as a natural person:

Doing business through a company
If you establish, for example, an s.r.o., the legal entity does business, not you personally as an OSVČ.

One-time or occasional income
Occasional income (e.g. sale of personal property) is not considered business activity.

Income from activities other than business
For example, rental income, author’s fees in certain cases, or income from employment.

Warning: doing business without OSVČ can be a problem
If someone:

• performs an activity on a long-term basis,
• issues invoices repeatedly,
• presents themselves to clients as a business entity,

and at the same time does not have OSVČ or another legal form, it may be considered illegal business activity, which can result in fines.

How to choose the right legal form
Simplified:

• I want to do business alone, simply → OSVČ,
• I want to separate personal assets or grow → company (e.g. s.r.o.),
• It is not a business activity → OSVČ is not required.

The choice depends on the scope of activity, level of risk, and long-term plans.

OSVČ is not mandatory for everyone who earns money, but it is essential for independent business activity of a natural person. If you want to do business regularly and on your own responsibility, you cannot do without OSVČ (or a company).

Yes, an OSVČ can exist even without income. Running a business is not conditional on having immediate or any revenue at all. What matters is that you have valid authorization to do business and that the activity has been formally started.

What this means in practice
If you are an OSVČ and:

• do not issue any invoices,
• do not obtain any contracts,
• have zero or very low income,

you are still considered an OSVČ from the authorities’ point of view.

Tax obligations with zero income
Even if you have no income:

• you file a tax return (with a zero tax base),
• you submit reports to the health insurance company and the Czech Social Security Administration.

Zero income does not mean that administrative obligations are automatically canceled.

Health insurance

• If OSVČ is your main activity, health insurance must be paid even without income (minimum advance payments).
• If OSVČ is a secondary activity (e.g. alongside employment, studies, parental leave, or retirement), health insurance is not paid from the business if there is no profit.

Social insurance

• With zero profit, social insurance is not paid.
• The obligation to pay social insurance arises only after reaching profit above the statutory limit or automatically for main activity once the obligation to pay advances is established.

When having an OSVČ without income can be a problem
An OSVČ without income is not worthwhile in the long term if:

• it is a main activity and you must pay minimum health insurance,
• the business is effectively inactive,
• you do not have a realistic plan to resume generating income.

In such cases, it makes sense to consider suspending or terminating the trade license.

Setting up as an OSVČ in the Czech Republic is fully digitalized in 2026. The entire process can be handled online from home using the Unified Registration Form (JRF), which automatically registers you with all the necessary authorities.

Basic procedure for 2026:

1. Selection of trade and identification
You choose your field of business (unregulated, professional, or vocational trade). For online setup, you will need a Bank Identity or another form of electronic identification (eObčanka, MojeID).

2. Submission via the Trade Licensing Portal
You fill out the JRF online. With this single step, you notify the trade, register for income tax at the financial office, and announce the start of your activity to your health insurance company and the Czech Social Security Administration (ČSSZ).

3. Assignment of ID Number (IČO) and Data Box activation
The office usually registers your trade within 5 working days. A business data box (datová schránka) will be automatically established for you, through which authorities are required to communicate with you.

4. Choice of tax regime (Flat-rate tax)
Right at the start, you must decide whether to enter the flat-rate regime (one monthly payment for everything), or whether you will apply expenses as a percentage (flat-rate expenses) or through actual bookkeeping.

Good to know:

• Administrative fee: You pay CZK 1,000 for notifying your first trade (can be paid by card online).
• Records: All your details will be searchable in the Trade Licensing Register (RŽP).
• Obligation: As an OSVČ, from 2026 you must file all tax returns exclusively electronically.

The entire process is designed so that you do not have to physically visit the Trade Licensing Office unless you have a specific reason to do so.

Authorization to conduct business arises from entry into the Trade Licensing Register based on notification. In 2026, you have three main ways to set up as an OSVČ, with the state preferring the fully digital path.

1. Online via the Trade Licensing Portal (The fastest way)
The most efficient method for 2026. You log in using Bank Identity or eObčanka and fill out an electronic form. The system links you directly with the tax office, social security administration, and health insurance company.

2. In person at any Trade Licensing Office (CRM)
Local jurisdiction does not apply in the Czech Republic. You can go to any office (Central Registration Point – CRM) in Prague, even if you live in Brno. An officer will fill out the Unified Registration Form with you on the spot.

3. Czech POINT
Business can also be notified at post offices or municipal offices marked with the Czech POINT symbol. This is an alternative if you don't have a digital identity and don't want to visit a trade licensing office directly.

Important notes for 2026:

• It's not just about the IČO (ID Number): The setup itself takes place at the trade licensing office, but subsequent obligations (taxes, insurance) are managed by other authorities.
• Data Box: Immediately after setup at any of these locations, the state will activate a business data box (datová schránka) for you.
• Myth: An OSVČ is not set up at the tax office. That office only registers you for taxes once you are already an existing entrepreneur.

The Trade Licensing (Self‑employed) Office (Živnostenský úřad) is a state authority in the Czech Republic responsible for the registration and administration of trade-based business activities. This is where the authorization to conduct business under the Trade Licensing Act is established.

What role the Trade Licensing Office plays
The Trade Licensing Office:

• accepts trade notifications,
• assesses compliance with statutory requirements,
• registers entrepreneurs in the Trade Register,
• issues extracts from the Trade Register,
• supervises compliance with trade regulations.

Without the involvement of the Trade Licensing Office, trade-based business activity cannot be established.

What the Trade Licensing Office does not handle
The Trade Licensing Office:

• does not determine taxes,
• does not collect insurance contributions,
• does not deal with accounting or tax returns.

These areas fall under the responsibility of the tax office, health insurance companies, and the Czech Social Security Administration.

When the Trade Licensing Office is not used
The Trade Licensing Office is not involved in cases where:

• the activity is not considered a trade (e.g. certain liberal professions),
• business activities are carried out exclusively through a legal entity.

The Trade Licensing Office is the key entry point for establishing OSVČ based on a trade license. It handles the creation of the business, its registration, and statutory requirements — not taxes or insurance contributions.

To establish an OSVČ, in most cases only a minimum of documents is required. The exact scope depends on the type of activity you want to carry out.

Basic documents (always required)
To notify the start of business, you need:

• a valid ID card or other proof of identity,
• a completed business notification form (submitted in person or electronically).

That is all if you are establishing a free trade and meet the general conditions.

Documents according to the type of trade
For certain activities, additional documents are required:

Craft trade
Proof of professional qualification (apprenticeship certificate, secondary education diploma, or professional experience).

Regulated trade
Proof of qualification as specified by law for the particular field.

Licensed trade
Documents required for granting a license (decided by the administrative authority).

If the entrepreneur does not meet the qualification requirements personally, an appointed responsible representative must be documented.

Proof of the right to use the registered business address (only in some cases)
If your place of business is:

• outside your permanent residence,
• or in rented premises,

a consent of the property owner may be required.

What is not required
To establish an OSVČ:

• you do not need a business plan,
• you do not need a bank account,
• you do not need a notary or a court.

Additional documents are required only for specific types of activities or under particular business conditions.

Starting an OSVČ in the Czech Republic is inexpensive and in many cases almost cost-free. The price mainly depends on the type of trade you are establishing and the method you choose.

Basic administrative fee

• CZK 1,000 – when registering a trade (applies to free, craft, and regulated trades)
• CZK 0 – if you are adding another trade to an already existing authorization

The fee is paid once at the time of establishment.

Licensed trade
For a licensed trade:

• the administrative fee is not paid for the notification itself,
• however, business activity may start only after the license is granted by the administrative authority.

The method of submission does not affect the price
The fee is the same whether you establish OSVČ:

• in person,
• online,
• or via Czech POINT.

The difference is only in convenience, not in cost.

Other possible costs (optional)
Establishing an OSVČ does not automatically include any additional expenses. Costs may arise only if you:

• use the services of a consultant or accountant,
• need to prove professional qualifications,
• arrange consent for the registered business address.

These expenses are not part of the OSVČ establishment itself.

Starting an OSVČ is generally very fast. In standard cases, it is possible to start doing business immediately or within a few working days, depending on the type of activity and the method of submission.

Common cases

Free trade
Authorization to conduct business arises at the moment of notification. In practice, you can start doing business the very same day the application is submitted.

Craft or regulated trade
If you provide the required qualifications, the trade is usually registered without undue delay, typically within a few days.

Licensed trade
For licensed trades, the process is different:

• business activity begins only after the license is granted,
• the administrative procedure may take longer, depending on the specific field and assessment of conditions.

What can affect the time needed
The speed of establishing an OSVČ mainly depends on:

• the type of trade,
• the completeness of submitted documents,
• the method of submission (in person vs. electronic).

If all documents are in order, the process is not delayed.

No, permanent residence in the Czech Republic is not a requirement for establishing an OSVČ. Individuals who do not have permanent residence in the Czech Republic can also operate as OSVČ.

How it works for Czech citizens

• A citizen of the Czech Republic does not need to have permanent residence in the Czech Republic to become an OSVČ.
• What matters is meeting the legal conditions for doing business, not the place of permanent residence.

How it works for foreigners
A foreign national can operate as an OSVČ if they:

• have legal permission to stay in the Czech Republic,
• meet the conditions under the Trade Licensing Act,
• have an address in the Czech Republic for business or official correspondence.

Permanent residence is not required, but legal residence is.

Place of business vs. permanent residence
It is important to distinguish between:

• permanent residence – a personal data record, not a condition for doing business,
• place of business – an address entered in the register that must be demonstrable.

The place of business can be:

• your home address,
• a company address,
• a virtual office (with the owner’s consent).

Yes, a foreign national can establish an OSVČ in the Czech Republic, provided they meet the statutory requirements. The key factor is whether the person is an EU citizen or a citizen of a non‑EU (third) country.

EU citizen
A citizen of a European Union member state:

• may do business in the Czech Republic under the same conditions as a Czech citizen,
• does not need a work permit,
• must meet the standard requirements for establishing an OSVČ.

Permanent residence in the Czech Republic is not required.

Non‑EU citizen (third country national)
A foreign national from outside the EU may establish an OSVČ if they:

• have a valid residence permit in the Czech Republic that allows business activity,
• meet the conditions set out in the Trade Licensing Act,
• provide the required documents (e.g. clean criminal record, business address).

Without an appropriate residence permit, it is not possible to establish an OSVČ.

What applies to all foreign nationals
Regardless of nationality, a foreign national:

• must meet the requirements for the specific type of trade,
• must have a registered place of business in the Czech Republic,
• after establishing OSVČ status, is required to handle taxes and insurance contributions in the same way as a Czech entrepreneur.

The difference between individual types of trades lies mainly in whether and how an entrepreneur must prove professional competence. The Czech Trade Licensing Act distinguishes the following basic types of trades.

Free trade
A free trade is the simplest form of business activity.

• no professional education or experience is required,
• only general conditions must be met (age, legal capacity, clean criminal record),
• one trade title covers dozens of different business activities.

It is the most common choice when establishing an OSVČ, especially for services and modern professions.

Craft trade
A craft trade is intended for activities where practical professional skills are essential.

• requires an apprenticeship certificate, vocational secondary education, or professional experience,
• typically includes manual or technical professions,
• the law precisely defines what qualification must be documented.

If the entrepreneur does not meet the qualification requirements personally, they may appoint a responsible representative.

Regulated trade
A regulated trade applies to activities that require specific professional expertise.

• the qualification is determined by special legislation,
• requirements vary depending on the specific field,
• these are often regulated or highly specialized services.

Without meeting these conditions, a regulated trade cannot be operated.

What all trades have in common

• All types of trades are governed by the Trade Licensing Act.
• In all cases, authorization arises through registration in the Trade Register.
• The difference is not in taxation, but in the conditions for starting the activity.

Summary

• Free trade – no qualification required, the easiest way to start.
• Craft trade – requires professional skills or experience.
• Regulated trade – requires specific qualifications defined by law.

The choice of trade type depends solely on the nature of the activity performed.

A free trade (volná živnost) includes a wide range of business activities for which no professional qualification, education, or prior experience is required. The specific fields are defined by the Trade Licensing Act and its annex.

Most common fields of free trades
Free trades typically include in particular:

Commerce and sales

• retail and wholesale,
• e‑shops and online sales,
• intermediation of trade and services.

Services

• administrative and office work,
• marketing, advertising, social media management,
• translation and language services (excluding court interpreting),
• organization of courses, training sessions, and workshops.

IT and online activities

• software and web application development,
• website and IT system administration,
• creation of digital content,
• online consulting.

Creative and media activities

• graphic design,
• photography services (excluding regulated activities),
• copywriting and content writing,
• audiovisual production.

Advisory activities

• business consulting,
• advisory services,
• lecturing and coaching activities.

How a free trade is formally defined
A free trade has the official title:
“Manufacturing, trade and services not listed in Annexes 1 to 3 of the Trade Licensing Act”

Under this single title fall more than 80 individual fields of activity, which are selected at the time of registration according to the work actually performed.

What to watch out for

• The selected field must correspond to the activity actually performed.
• Some activities may appear to be free trades but in reality fall under regulated or craft trades.
• Incorrect classification may lead to problems during inspections.

Yes, you can be an OSVČ at the same time as being employed. In such a case, the business activity is considered a secondary self‑employed activity.

How it works in principle
If you have an employment contract and run a business at the same time:

• employment remains your main source of income,
• OSVČ is considered a secondary activity,
• the state allows and recognizes this combination.

From a legal perspective, employment and OSVČ do not exclude each other.

What this combination affects
Running a business alongside employment mainly affects:

• social security contributions,
• health insurance,
• the assessment of whether OSVČ is main or secondary,
• administrative obligations toward authorities.

The specific differences are important, but they are addressed in the following questions in this section.

What you need to watch out for

• The employment must be real and ongoing (not just formal).
• The business activity must not violate your employment contract or any non‑compete clause.
• In some cases, there may be a duty to inform the employer.

OSVČ alongside employment is a common and legal form of additional income. The key is to correctly determine that it is a secondary activity and handle contributions and obligations accordingly.

Main and secondary OSVČ activity is a classification that determines how obligations toward the state are assessed, especially with regard to social security and health insurance. It is not a matter of choice, but a legal classification based on the entrepreneur’s life situation.

Main OSVČ activity
OSVČ is considered a main activity if:

• the business is the main source of income,
• the entrepreneur does not have an employment contract,
• or there is no other statutory reason for secondary activity.

With main activity, there is an obligation to:

• pay minimum health insurance advances,
• deal with social security contributions regardless of income level.

Secondary OSVČ activity
OSVČ is considered a secondary activity if the business is not the main source of livelihood and there is a statutory reason, for example:

• employment (employment contract),
• studies,
• parental leave,
• receiving an old-age or disability pension.

Secondary activity has a more lenient regime, especially in terms of contributions, which is a key topic of this section.

You have OSVČ as a secondary activity if you have another main status from which insurance contributions are paid for you, and self-employment is not your main source of livelihood.

Most common situations when OSVČ is considered secondary
OSVČ is classified as a secondary activity if you simultaneously:

• have employment under an employment contract (full-time employment),
• are a student (provided statutory conditions are met),
• are on parental leave,
• receive an old-age or disability pension,
• care for a child or a dependent person (as defined by law).

The decisive factor is the existence of this main status, not the amount of income from business.

What does not matter
When determining secondary OSVČ status, it does not matter:

• how much you earn from your business,
• how many hours you devote to business activities,
• that you run the business “only occasionally.”

Even high business income can still be considered secondary, as long as the statutory reason exists.

How to verify it officially
Secondary activity status:

• is declared when starting the business,
• or is documented to the Czech Social Security Administration (e.g. by confirmation of employment).

Health insurance companies rely on similar information.

Usually no. The mere fact that you run an OSVČ alongside employment does not create a general obligation to inform your employer. However, there are exceptions that you need to be aware of.

When you do NOT have to inform your employer
You do not have to inform your employer if:

• your business activity is not related to your employer’s field of activity,
• your employment contract contains no restrictions,
• you do not violate working hours or employment duties.

In common cases, OSVČ is considered a private activity outside employment.

When you MUST inform your employer
You must inform your employer if:

• you do business in the same or a similar field as your employer,
• your contract includes a non‑compete clause,
• the business activity could represent a conflict of interest,
• the employer has explicitly required this in the employment contract or internal regulations.

In these cases, a written consent from the employer is often required.

What an employer cannot do
An employer:

• cannot generally prohibit you from doing business,
• cannot condition your employment on terminating your OSVČ,
• cannot require information about your business income.

Any restrictions are only possible within the limits set by the Labor Code.

OSVČ alongside employment is a very popular form of additional income because it combines the stability of employment with the flexibility of self‑employment. The main advantages relate primarily to contributions, risk, and ease of starting.

Lower contributions than for main OSVČ
One of the biggest advantages is a more favorable contribution regime:

• no minimum advances for social insurance,
• social insurance is paid only if profit exceeds the statutory limit,
• health insurance is covered through employment.

Thanks to this, secondary OSVČ is financially much less burdensome.

Lower business risk
Employment provides:

• a regular income,
• social and health insurance coverage,
• basic financial security.

This allows the business to grow gradually, without pressure for immediate profit.

An ideal way to “test” entrepreneurship
OSVČ alongside employment allows you to:

• test a business idea,
• build a client base,
• gain experience without leaving your job.

This is a common first step before transitioning to full‑time OSVČ.

Greater flexibility and control over income
Secondary OSVČ:

• allows work only in your free time,
• gives you direct control over the level of additional income,
• is not limited by fixed working hours.

The business can be easily adapted to your time availability.

Tax efficiency with lower income
With the right expense setup, it can be:

• tax‑efficient,
• administratively simple,
• profitable even on a smaller scale.

This is why secondary OSVČ is very common among freelancers and specialists.

For a secondary OSVČ, there is no upper income limit that would prohibit doing business. Limits apply only to social insurance, not to the ability to run a business or to the amount of earnings as such.

There is no limit on how much you can earn
If you have OSVČ as a secondary activity:

• you can have any level of income,
• the law does not set a maximum amount,
• a high income does not automatically change secondary OSVČ into a main activity.

The decisive factor is the existence of employment, not the amount of business income.

The important limit is the profit threshold for social insurance
The only real “limit” for secondary OSVČ is the so‑called decisive amount for social insurance.

• the annual profit is monitored (income − expenses),
• if the profit does not exceed the statutory threshold, no social insurance is paid; if it is exceeded, an obligation arises to pay social insurance.

This threshold changes every year and is set by law.

What the limits do not affect
Income limits:

• do not affect income tax (tax is always assessed),
• do not automatically change OSVČ status,
• do not limit the scope of business.

This is purely a matter of the insurance contribution regime.

Yes, but differently than for a main OSVČ. For a secondary OSVČ, contributions are assessed separately for health and social insurance, and the regime is significantly more lenient.

Health insurance
For a secondary OSVČ alongside employment:

• health insurance is covered through employment,
• no minimum advances are paid from the business activity,
• health insurance is calculated only according to actual profit in the annual statement.

If the profit is low or zero, the result may be a zero additional payment obligation.

Social insurance
For social insurance, the following applies:

• no advances are paid during the year,
• the obligation arises only after exceeding the annual decisive amount,
• if the profit does not exceed the limit, no social insurance is paid at all.

This is one of the main reasons why secondary OSVČ is financially advantageous.

Income tax
Income tax:

• is always payable,
• does not depend on whether OSVČ is main or secondary,
• is handled within the tax return.

The tax regime is the same as for a main OSVČ.

What is important to keep an eye on

• contribution obligations are assessed retrospectively based on annual profit,
• the decisive documents are the statements for the CSSA and the health insurance company,
• secondary OSVČ status must be correctly reported.

A secondary OSVČ becomes a main OSVČ at the moment when the statutory reason for secondary activity ceases to exist. It does not depend on the amount of business income, but on a change in the entrepreneur’s life situation.

Most common situations when the change occurs
A secondary OSVČ becomes a main OSVČ especially when:

• you terminate your employment (full-time employment),
• you move from employment to unpaid leave,
• you finish your studies that were the reason for secondary activity,
• parental leave ends,
• you stop receiving a pension that established secondary activity status.

The decisive factor is the loss of the main status, not the business activity itself.

What does NOT trigger the change
A change to a main OSVČ does not occur if:

• business income increases significantly,
• business activities take more time than employment,
• you have more clients or higher turnover.

These factors have no effect on the classification as main vs. secondary.

From when the change applies
The change to a main OSVČ:

• takes effect from the day the reason for secondary activity ends,
• must be reported to the health insurance company and the Czech Social Security Administration,
• has a direct impact on the obligation to pay minimum advances.

Failure to report the change may result in underpayments and penalties.

With a secondary OSVČ, mistakes often do not relate to the business activity itself, but rather to misunderstanding obligations toward authorities. These misconceptions can lead to back payments, penalties, or unnecessary complications.

Incorrect reporting of secondary activity
One of the most common mistakes is when an entrepreneur:

• fails to report that OSVČ is carried out as a secondary activity,
• or does not report it to the Czech Social Security Administration.

The result may be incorrect assessment of mandatory advances that should not apply to a secondary OSVČ at all.

The false assumption that “nothing needs to be done”
A common misconception is the belief that:

• with low income, nothing needs to be reported,
• there is no need to file a tax return or annual statements.

Even a secondary OSVČ is required to file tax returns and annual statements, even if the profit is zero.

Failure to report the change to main OSVČ
If employment ends and OSVČ continues:

• the entrepreneur does not report the change of status,
• continues not paying minimum advances.

This leads to retroactive payments of health and social insurance, often including penalties.

Underestimating the relationship with the employer
Another common mistake includes:

• ignoring a non‑compete clause,
• doing business in the same field without the employer’s consent,
• a conflict of interest.

This can lead not only to workplace issues, but even to termination of employment.

Not monitoring profit in relation to social insurance
Entrepreneurs often track only revenue, but:

• do not calculate the actual profit,
• overlook exceeding the decisive threshold.

The result is an unexpected obligation to pay social insurance.

Poor administration and record‑keeping
Common mistakes also include:

• incorrectly issued invoices,
• failure to archive documents,
• late submissions to authorities.

Even with a secondary OSVČ, the obligation of proper record‑keeping still applies.

The tax system for OSVČ has been simplified in recent years, but limits have been added that you need to monitor. The main obligation remains personal income tax, which can be handled in two ways in 2026.

1. Personal Income Tax (DPFO)

• Standard regime: You pay 15% of the tax base (income minus expenses). If your profit exceeds the threshold for progressive tax (approx. CZK 1.6 million), you pay 23% on the amount above the limit.
• Flat-rate tax (Paušální daň): The most popular choice for 2026. With a single monthly payment, you settle tax, social security, and health insurance. You do not need to file a tax return.

2. Value Added Tax (VAT / DPH)

• You must become a VAT payer if your turnover for 12 consecutive months exceeds CZK 2,000,000.
• As a VAT payer, you must submit VAT returns and control reports (in 2026, exclusively electronically).

3. Specific taxes by business type

• Real Estate Tax: If you use your own premises for business (e.g., a workshop or office).
• Road Tax: Note that it has been abolished for passenger cars and vans up to 12 tons. It is only paid for heavy goods vehicles over 12 tons.
• Withholding Tax: If you employ people on DPP or DPČ agreements under certain conditions.

Fundamental difference: Tax vs. Insurance

Do not confuse taxes with social security and health insurance contributions. While tax can be zero due to tax credits (per taxpayer, for children), minimum social and health insurance must always be paid by an OSVČ performing their main activity.

OSVČ income tax is the tax that a self‑employed individual pays to the state on their business profit. It is a personal income tax under the Czech Income Taxes Act.

What OSVČ income tax is paid on

The tax is not paid on total turnover, but on profit, meaning:

• business income
minus
• expenses incurred to earn, secure, and maintain income.

Expenses can be applied:

• in actual amounts,
• or as lump‑sum (flat‑rate) expenses.

Who the income tax applies to

Income tax:

• is paid by every OSVČ,
• regardless of whether it is a main or secondary activity,
• is always assessed for the entire calendar year.

Exceptions apply only in specific cases (e.g. the flat‑rate tax scheme), which are addressed separately.

How OSVČ income tax is handled

OSVČ income tax is:

• calculated in the tax return,
• filed with the tax office,
• paid either as a lump sum or through advance payments.

The calculation method and tax rates themselves are the subject of the following questions.

In the Czech Republic, an OSVČ pays personal income tax at a rate of 15% or 23%, depending on the amount of the tax base achieved. Progressive taxation applies.

Basic tax rate

15%

This rate applies to most OSVČs on the standard portion of profit.

This rate applies to the tax base up to the statutory threshold.

Higher tax rate (progressive taxation)

23%

This rate applies only to the part of the tax base that exceeds the statutory limit.

It does not mean that the entire income is taxed at 23%, but only the portion above the threshold.

What is important to understand

• An OSVČ does not have one fixed tax rate for all income.
• In practice, most entrepreneurs fall within the 15% tax rate.
• The higher rate applies to higher profits, not turnover.

What the tax rate does not include

The stated percentage:

• does not include health and social insurance contributions,
• does not take tax allowances into account,
• is not the final amount payable.

These elements significantly affect the final tax and are covered in the following questions.

OSVČ income tax is paid retrospectively for the entire calendar year, and after filing the tax return. It is therefore not a monthly payment, but an annual settlement.

Main deadline for paying the tax

Income tax is due:

• on the same day the tax return is filed.

If an OSVČ files the tax return themselves, the tax must be paid by the statutory filing deadline. If a tax advisor is used, the payment deadline is extended accordingly.

How the tax is paid

Income tax is:

• paid as a one‑time payment to the tax office account,
• or only the difference is paid if tax advances were already paid during the year.

The amount payable is based on the tax return.

Tax advances

If the calculated tax exceeds the statutory limit:

• an obligation arises to pay tax advances in the following year,
• advances are paid during the year, not retrospectively.

Advances do not replace the annual tax; they only spread the payment over time.

What happens if the tax is not paid on time

If an OSVČ does not pay the tax by the deadline:

• late payment interest arises,
• the tax office may initiate enforcement.

It is therefore important to keep track of both the deadline and the correct amount.

OSVČ income tax is calculated from the achieved profit, not from total revenue. The calculation consists of several consecutive steps defined by law.

First, the following is added up:

• all income from business and other self‑employed activities for the given year.

This refers to actually received money, not issued but unpaid invoices (under the standard cash basis regime).

2. Deduction of expenses

Expenses are deducted from income using one of two methods:

• actual expenses (real costs documented by receipts),
• lump‑sum expenses (a percentage of income based on the type of activity).

The difference between income and expenses represents the profit.

3. Calculation of the tax base

Profit:

• forms the tax base,
• may be further adjusted by non‑taxable parts of the tax base (if applied).

The tax base is the amount from which the actual tax is calculated.

4. Application of the tax rate

The following rates are applied to the tax base:

• 15% tax on the standard portion of the tax base,
• 23% tax only on the portion exceeding the statutory limit.

This results in the calculated tax before allowances.

5. Application of tax allowances

The following are deducted from the calculated tax:

• tax allowances (e.g. the basic taxpayer allowance).

After deducting allowances, the final tax liability is determined.

What is important to remember

• Tax is never calculated from turnover, but from profit.
• Expenses have a crucial impact on the amount of tax.
• Tax allowances can significantly reduce or even eliminate the tax.

Tax allowances are amounts by which an OSVČ can directly reduce the calculated income tax. They are not deducted from the tax base, but from the tax itself, which has a significant impact on the final amount payable.

Basic tax allowances for OSVČ

An OSVČ can apply in particular the following allowances:

• Basic taxpayer allowance
  A fundamental allowance that every OSVČ can claim regardless of income level.
• Spouse allowance
  Applicable if statutory conditions are met (low income of the spouse).
• Disability allowance
  Applies to OSVČ receiving a disability pension (different degrees).
• Allowance for holders of a ZTP/P card
  A separate allowance linked to health status.
• Student allowance
  For OSVČ who meet the conditions of continuous preparation for a future profession.

How tax allowances work in practice

• Allowances are deducted from the calculated tax, not from profit.
• If allowances exceed the calculated tax, the tax can be reduced down to zero.
• Allowances are claimed in the tax return.

What not to confuse with tax allowances

Tax allowances are not:

• expenses,
• tax deductions,
• health and social insurance contributions.

Each of these items works in a different way.

Yes. The basic taxpayer allowance is a fundamental tax allowance that every OSVČ can claim. It does not matter whether you operate as a main or secondary activity, nor does the level of your income matter.

Who is entitled to the basic taxpayer allowance

The basic taxpayer allowance can be claimed by:

• every OSVČ – natural person,
• a resident of the Czech Republic (or, under statutory conditions, also a non-resident),
• regardless of whether they are also employed.

The entitlement arises automatically by law; no separate application is required.

How the allowance works

• The allowance is deducted directly from the calculated tax,
• it is claimed once per year in the tax return,
• it can reduce the tax down to zero, but not below zero.

If the calculated tax is lower than the allowance, the tax is simply reduced to zero.

What is important to know

• The basic taxpayer allowance is not applied monthly, but annually.
• It cannot be claimed twice – for example, separately in employment and separately in self-employment.
• If you combine employment and OSVČ, the allowance is claimed only once.

In addition to the basic taxpayer allowance, an OSVČ can also claim other statutory tax allowances, provided the relevant conditions are met. These allowances directly reduce the calculated tax.

Spouse allowance

An OSVČ may claim this allowance if:

• the spouse has low own income as defined by law,
• the couple is legally married (not just living in a shared household).

This allowance can significantly reduce the overall tax liability.

Disability allowance

For OSVČ who:

• receive a disability pension,
• are entitled to a partial or higher allowance depending on the degree of disability.

The allowance is applied for the whole year, or proportionally if applicable.

Allowance for holders of a ZTP/P card

A separate allowance intended for OSVČ who:

• hold a valid ZTP/P disability card,
• can claim it independently of other allowances.

Student allowance

An OSVČ may claim this allowance if:

• they meet the conditions of continuous preparation for a future profession,
• typically when combining studies with self‑employment.

How tax allowances work in practice

• Allowances are deducted from the calculated tax, not from profit.
• They can be combined, provided all conditions are met.
• They are claimed in the tax return.

If the total amount of allowances exceeds the tax, the tax is reduced to zero, but no refund is generated.

A tax return (DPFO) is a key document by which a self-employed person (OSVČ) officially reports their income and expenses to the tax office. In 2026, all OSVČ are obliged to file this return exclusively electronically via the MOJE daně portal or a data box.

Main functions of a tax return:

• Tax calculation: You find out whether you have to pay tax or whether you have an overpayment (e.g., thanks to the taxpayer credit).
• Claiming relief: This is where you deduct tax credits for children, a spouse, mortgage interest, or donations.
• Basis for contributions: Data from the tax return are essential for the subsequent submission of Reports (Přehledy) for the Social Security Administration (ČSSZ) and the health insurance company.

Who MUST file it in 2026?

• Every OSVČ whose annual income (not profit) exceeded the filing limit (CZK 50,000 if you have no other income, or CZK 20,000 if you also have employment income).
• Exception: If you are in the flat-rate regime (paušální režim) and have met its conditions, you do not file a tax return.

Watch out for a common mistake:

Filing a return does not mean the tax is paid. The tax must be credited to the tax office's account by the same deadline as the filing of the return. From 2026, fines for late electronic filing are issued automatically.

In 2026, the tax return is filed for the year 2025. Since all self-employed persons (OSVČ) have a mandatory data box, they file returns exclusively electronically, which extends their basic deadline.

Key deadlines for 2026:

By May 4, 2026 (Electronic submission – Standard)

This is the main deadline for most OSVČ. You must send the return electronically (via the MOJE daně portal or a data box). (Note: Since May 2, 2026, falls on a Saturday, the deadline is moved to Monday, May 4.)

By July 1, 2026 (With a tax advisor)

This deadline applies if your return is filed by a certified tax advisor or attorney based on a power of attorney.

Important rules for 2026:

• End of paper forms: If you file a return on paper as an OSVČ, the tax office may consider it ineffective or issue a fine for failing to follow the required submission format.
• Tax payment due date: The tax must be credited to the tax office's account on the same day the filing deadline expires.
• Weekends and holidays: If the deadline falls on a day off, the deadline always ends on the nearest following business day.

Sanctions for late filing:

For delays longer than 5 business days, the tax office will automatically assess a penalty. Similarly, late payment interest will accrue if you do not pay the calculated tax on time.

In the Czech Republic, an OSVČ pays health insurance and social insurance. These payments are not taxes, but mandatory insurance contributions that finance healthcare, pensions, and other social benefits.

Health insurance

Health insurance:

• is mandatory for every OSVČ,
• ensures access to healthcare services,
• is handled with a health insurance company.

For some OSVČs (e.g. secondary activity), the payment regime differs, which is covered in the following questions.

Social insurance

Social insurance:

• is paid to the Czech Social Security Administration,
• finances pensions and sickness benefits,
• has a different regime for OSVČ than for employees.

Not every OSVČ pays it automatically in the same amount.

What is not considered insurance contributions

It is important to distinguish between:

• insurance contributions (health and social insurance)
• and taxes (e.g. income tax)

These are different obligations, even though they are often handled together.

What affects the amount of contributions

The amount an OSVČ pays in contributions mainly depends on:

• whether it is a main or secondary activity,
• the achieved profit,
• statutory minimum advances,
• any applicable exemptions.

Specific amounts and rules are explained in detail in the following questions in this section.

Summary

An OSVČ pays:

• health insurance,
• social insurance.

These are mandatory contributions whose amount and payment method vary depending on the OSVČ’s situation and are explained in detail in the related topics.

Health insurance for OSVČ is mandatory insurance that a self‑employed person pays to finance public healthcare. Thanks to it, an OSVČ is entitled to healthcare services covered by the public system.

What health insurance is for

Health insurance:

• ensures access to healthcare (doctors, hospitals, medications),
• operates within the public healthcare system,
• is not dependent on how much healthcare the OSVČ actually uses.

It is a statutory obligation, not voluntary insurance.

Who pays OSVČ health insurance

Health insurance applies to:

• every OSVČ,
• regardless of whether the business is carried out as a main or secondary activity,
• regardless of the level of income (differences apply only to the method of payment).

The OSVČ handles the insurance independently, not through an employer.

Where health insurance is handled

OSVČ health insurance:

• is paid to a health insurance company,
• is settled through the annual OSVČ health insurance statement,
• has its own rules that differ from social insurance.

What health insurance is not

Health insurance:

• is not a tax,
• is not sickness insurance,
• does not provide income during illness.

Its sole purpose is the coverage of healthcare costs.

Social insurance is mandatory insurance that a self‑employed individual pays to the state through the Czech Social Security Administration (ČSSZ). It primarily serves to finance the pension system and certain social benefits.

What social insurance is for

Social insurance:

• finances old‑age, disability, and survivors’ pensions,
• affects the amount of the OSVČ’s future pension,
• operates under a different regime for OSVČ than for employees.

Sickness insurance is not a mandatory part of OSVČ social insurance and is handled separately as voluntary insurance.

Who pays OSVČ social insurance

Social insurance applies to:

• OSVČ carrying out main self‑employed activity,
• OSVČ with a secondary activity if their profit exceeds the statutory limit.

Not every OSVČ therefore pays social insurance automatically – it depends on the type of activity and the profit achieved.

Where social insurance is handled

OSVČ social insurance:

• is paid to the Czech Social Security Administration (ČSSZ),
• is settled through the annual OSVČ statement,
• has its own rules that differ from health insurance.

What social insurance is not

Social insurance:

• is not a tax,
• is not health insurance,
• does not automatically guarantee entitlement to sickness benefits.

Its main purpose is to secure future pension entitlements for OSVČ.

The obligation for an OSVČ to pay contributions arises at the moment when a self‑employed person starts doing business or begins performing self‑employed activity under the law. The specific regime and the moment when payments start differ for health insurance and social insurance.

When the obligation to pay health insurance arises

The obligation to pay health insurance arises:

• from the day the self‑employed activity begins,
• regardless of whether the OSVČ has any income or profit,
• always for main activity, and for secondary activity according to statutory rules.

Health insurance is mandatory for every OSVČ. The only difference is whether minimum advance payments are paid, or whether the insurance is calculated retrospectively based on profit.

When the obligation to pay social insurance arises

The obligation to pay social insurance arises:

• for OSVČ with a main activity, usually from the start of business,
• for OSVČ with a secondary activity, only after exceeding the statutory profit limit,
• retrospectively based on the annual OSVČ statement.

Social insurance therefore does not arise automatically for every OSVČ from the very beginning, but depends on the type of activity and the profit achieved.

What is important to keep in mind

• the start of activity must be reported in time to the health insurance company and the Czech Social Security Administration,
• the decisive factor is the actual start of business, not the first issued invoice,
• a change from secondary to main OSVČ also changes the obligation to pay contributions.

Summary

The obligation for an OSVČ to pay contributions arises as follows:

• health insurance – from the start of business,
• social insurance – depending on the type of activity and the level of profit.

Correctly determining the moment when the obligation arises is crucial in order for an OSVČ to avoid underpayments and penalties.

In 2026, there is a further planned increase in minimum social and health insurance advances. This increase is a result of average wage growth and legislative changes within the consolidation package, which raised the minimum assessment base for social insurance to 40% of the average wage.

Minimum monthly advances for main activity OSVČ in 2026:

• 🚀 Social insurance: CZK 5,720 (up from CZK 4,759 in 2025).
• 🏥 Health insurance: CZK 3,306 (up from CZK 3,143 in 2025).
• 💰 Total minimum: CZK 9,026 per month.

1. Health insurance (Always mandatory)

For your main activity, you must pay this amount even if your business is in loss. The advance is due by the 8th day of the following month (though most OSVČ pay within the current month to stay safe).

2. Social insurance (Depends on activity type)

• Main activity: You pay the mandatory minimum of CZK 5,720. Exception: For the first 3 years of business, a lower rate may apply for some entrepreneurs.
• Secondary activity (e.g., during employment or studies): You do not have to pay minimum advances in advance. You pay only after filing your annual report if your profit exceeds the decisive threshold (approx. CZK 110k–120k per year). If you do pay advances for secondary activity, the minimum is CZK 1,574.

Flat-rate tax (Paušální daň) as an alternative

In 2026, the first tier of flat-rate tax has increased to CZK 9,984 per month. This single payment covers social insurance (CZK 6,578), health insurance (CZK 3,306), and a symbolic income tax of CZK 100. While the monthly cost is higher than the minimums, it includes a higher pension contribution and eliminates the need to file tax returns.

Yes, an OSVČ may be required to pay contributions even in the case of a loss, but it depends on whether the business is carried out as a main or secondary activity and on the type of insurance involved.

Health insurance in the case of a loss

Health insurance is subject to stricter rules:

• for a main OSVČ, health insurance must be paid even in the case of a loss or zero profit,
• the obligation to pay minimum advance payments continues regardless of the business result,
• a loss therefore does not relieve the obligation to pay health insurance.

For a secondary OSVČ, health insurance from business activity is usually not paid if no profit is achieved.

Social insurance in the case of a loss

Social insurance is assessed differently:

• in the case of a loss or zero profit, social insurance is not paid,
• for a secondary OSVČ, no obligation arises at all,
• for a main OSVČ, the obligation may be settled only based on the annual statement.

Social insurance is therefore directly linked to the existence of profit, not merely to the fact of doing business.

What is important to remember

• a loss does not automatically mean zero contributions,
• health insurance is always mandatory for a main OSVČ,
• social insurance is generally not paid in the case of a loss.

Summary

OSVČ in the case of a loss:

• health insurance – for a main activity, it is paid even in the case of a loss,
• social insurance – in the case of a loss, it is usually not paid,
• the decisive factor is whether it is a main or secondary OSVČ.

Correct classification is crucial to ensure that the OSVČ does not incur unexpected arrears or penalties.

OSVČ insurance advances are paid regularly during the year and serve as ongoing payments toward health and social insurance. The specific payment method differs depending on the type of insurance and on whether the activity is main or secondary.

How health insurance advances are paid

• advances are paid monthly,
• the due date is always by the 8th day of the following month,
• for a main OSVČ, at least the minimum advance must be paid,
• the payment is sent to the health insurance company’s account.

The amount of advances is adjusted after the end of the year based on the actual profit in the annual OSVČ statement.

How social insurance advances are paid

• advances are paid monthly,
• the due date is by the end of the given month,
• for a main OSVČ, minimum advances are mandatory,
• for a secondary OSVČ, advances are often not paid at all.

Social insurance is paid to the Czech Social Security Administration (ČSSZ).

Method of paying advances

• by bank transfer,
• using the correct variable symbol,
• to the account of the relevant institution (insurance company / ČSSZ).

Each payment must be clearly identifiable; otherwise, it may be considered unpaid.

Adjustment of advances

After submitting the annual statements:

• the actual insurance amount is recalculated,
• any underpayment or overpayment arises,
• a new advance amount is set for the next period.

If an OSVČ fails to pay health or social insurance on time or at all, a debt on insurance contributions arises toward the state. This debt is automatically increased by penalties and may ultimately lead to enforcement proceedings.

Creation of debt and penalties

Failure to pay contributions results in:

• a debt on insurance contributions toward the health insurance company or the Czech Social Security Administration (ČSSZ),
• a penalty for each day of delay,
• an obligation to pay the debt retroactively, regardless of the current financial situation.

Penalties are calculated automatically and increase with each additional day of non-payment.

Payment demands and enforcement

If the OSVČ does not address the debt:

• the health insurance company or ČSSZ will send a payment demand,
• collection proceedings may be initiated,
• the debt may be forwarded for enforcement (execution).

Enforcement may affect a bank account, wages, assets, or tax overpayments.

Impact on business and future entitlements

Non-payment of contributions can have long-term consequences:

• complications in communication with authorities,
• limitations on entitlement to pension benefits,
• deterioration of the financial stability of the business.

In the case of social insurance, non-payment may result in a lower future pension.

What to do if I cannot pay contributions

If an OSVČ knows they will not be able to pay contributions:

• they should contact the health insurance company or ČSSZ immediately,
• it is possible to request an installment payment plan,
• timely communication can prevent enforcement.

Ignoring the problem always makes the situation worse.

Pensions for OSVČ are based on social insurance contributions paid by the self‑employed person to the Czech Social Security Administration (ČSSZ). The amount of an OSVČ’s future pension depends directly on whether and how much social insurance they paid during their business activity.

What an OSVČ pension depends on

An OSVČ’s pension is mainly influenced by:

• the length of time during which social insurance was paid,
• the assessment bases from which the insurance contributions were calculated,
• whether the OSVČ paid only minimum contributions or higher amounts.

If an OSVČ pays only minimum social insurance contributions over the long term, this will result in a lower old‑age pension.

Main vs. secondary OSVČ and pensions

• for a main OSVČ, social insurance is paid compulsorily and the period of business activity counts toward the pension,
• for a secondary OSVČ, social insurance counts toward the pension only if an obligation to pay it arises,
• if a secondary OSVČ does not pay social insurance, this period is not counted toward the pension.

Which pensions apply to OSVČ

Through social insurance, an OSVČ may become entitled mainly to:

• an old‑age pension,
• a disability pension,
• survivors’ pensions (widow’s, widower’s, orphan’s).

The amount of these benefits is always individual and is based on the history of insurance payments.

Why OSVČ often have lower pensions

On average, OSVČ tend to have lower pensions than employees because:

• they often pay only minimum social insurance contributions,
• for secondary OSVČ, some years may not be counted at all,
• they pay contributions themselves and often optimize them downward.

For this reason, OSVČ are often advised to consider their own long‑term savings or investments as a supplement to the state pension.

Self-employed persons (OSVČ) are not automatically entitled to sick pay. Unlike health and social insurance, sickness insurance is entirely voluntary. If you do not pay it, the state will not pay you a single koruna in the event of illness.

Key conditions for 2026:

• Voluntary participation: You must actively register for it with the Czech Social Security Administration (ČSSZ), which can be done online via the ePortal.
• Minimum payment: In 2026, the minimum monthly premium is CZK 243.
• Waiting period: You only become entitled to benefits after 3 months of continuous payment (crucial if you have just started your business).

How does sick pay work?

• First 14 days: OSVČ receive no money from the state. While employees receive wage compensation from their employer, you must rely on your own financial reserves.
• From the 15th day: You begin receiving sickness benefits from the state (ČSSZ).
• Benefit amount: This depends on how much you pay. With the minimum contribution of CZK 243, the daily benefit is very low (approx. CZK 180–200 per day).

Important warning:

Paying standard social insurance (pension) does not mean you are insured for illness. These are two different accounts. If you forget to pay your sickness insurance by even one day, your participation immediately expires and you must re-register.

Is it worth it?

For most high-income OSVČ, state sickness insurance is often seen as insufficient. Many choose to combine the minimum state contribution (which is also a prerequisite for maternity or paternity benefits) with commercial income protection insurance, which can cover loss of income from the very first days of illness.

OSVČ expenses are costs that a self‑employed individual incurs in connection with their business and which can be applied to reduce the income tax base.

For an expense to be tax‑deductible, it must serve to generate, secure, or maintain income. It is not enough that it is paid – it must have a clear connection to the business.

Why expenses matter

• they reduce the taxable profit of the OSVČ,
• they directly affect the amount of income tax,
• they also have an impact on health and social insurance.

Without claiming expenses, an OSVČ would pay tax on total income, not on the actual economic result.

How OSVČ expenses can be claimed

An OSVČ can choose between two statutory methods:

• actual expenses – real costs paid and documented with receipts,
• lump‑sum expenses – expenses calculated as a percentage of income.

Within one calendar year, only one method of claiming expenses may be used.

Basic rule for recognizing an expense

• the expense is related to the business,
• it was actually incurred,
• it is defensible in the event of a tax audit.

If any of these conditions are missing, the expense is not considered tax‑deductible for an OSVČ.

The difference between lump‑sum expenses and actual expenses for an OSVČ lies in how business costs are applied when calculating income tax. Both methods are legal, but each is suitable for a different type of business and cost structure.

Actual expenses

Actual expenses are real costs actually incurred by the OSVČ in connection with their business activities.

• they are applied in their actual amount,
• they must be documented with accounting records (invoices, receipts),
• they require keeping records of income and expenses,
• they are suitable when real costs are higher.

This method is especially advantageous for businesses involving material purchases, operating costs, or investments.

Lump‑sum expenses (expense flat rate)

Lump‑sum expenses are not applied based on actual costs, but as a percentage of achieved income.

• there is no need to document individual expenses,
• there is no obligation to keep receipts for tax purposes,
• administration is significantly simpler,
• the expense amount is defined by law.

Lump‑sum expenses are often beneficial for OSVČ with low costs, typically in services, consulting, or freelancing.

Main differences in practice

• actual expenses = accuracy, but more administration,
• lump‑sum expenses = simplicity, but limited flexibility,
• only one expense method may be applied per calendar year.

The choice between lump‑sum and actual expenses has a significant impact on the amount of tax and should be reconsidered every year.

Expense flat rate (lump‑sum expenses) is a statutory way for an OSVČ to claim expenses as a percentage of income without having to prove actual costs with receipts or invoices.

Instead of tracking real expenses, the OSVČ deducts from income a fixed percentage that corresponds to the type of business activity.

How the expense flat rate works

• expenses are calculated as a percentage of achieved income,
• there is no need to record individual costs,
• the flat rate is defined by law and cannot be changed arbitrarily,
• it is applied for the entire calendar year.

The expense flat rate significantly simplifies administration and reduces the need to keep accounting documents.

Who the expense flat rate is suitable for

• OSVČ with low real costs,
• service providers and freelancers,
• entrepreneurs who want minimal administration.

If an OSVČ has high actual costs, it may be more advantageous to apply real expenses instead of the flat rate.

What is important to know

• only one expense method can be used per year,
• the flat rate cannot be combined with actual expenses,
• the choice of expenses affects the amount of tax and contributions.

OSVČ lump-sum expense rates are percentages set by law that an OSVČ can use to claim expenses from achieved income. The specific rate depends on the type of activity performed.

Basic lump-sum expense rates

• 80% of income – craft trades and agricultural production,
• 60% of income – other trades (e.g. free trades),
• 40% of income – liberal professions and copyright-based activities,
• 30% of income – rental of property not included in business assets.

These rates apply uniformly and cannot be changed arbitrarily – the decisive factor is the actual nature of the activity, not merely the name of the trade.

Limitations of lump-sum expenses

Lump-sum expenses are also subject to the following rules:

• the maximum amount of deductible expenses is capped by law,
• the lump-sum can be applied only up to a certain annual income level,
• lump-sum expenses cannot be combined with actual expenses in the same year.

This cap means that with higher income levels, the lump-sum method may no longer be the most tax-efficient option.

What you need to watch out for

• correct classification of the activity under the appropriate rate,
• if multiple activities are performed, each must be assessed separately,
• the choice of lump-sum expenses affects not only tax, but also insurance contributions.

Choosing the right expense flat rate mainly depends on the nature of your business and on what your actual costs are. It is not a matter of free choice – the flat rate must correspond to the activity you actually perform.

The type of activity is decisive

The flat rate is not determined by the name of the trade, but by what you actually do and what your income comes from.

• if you operate in craft trades or agriculture, you are entitled to the highest flat rate,
• for common trades and services, a medium flat rate is used,
• for liberal professions, consulting, or copyright-based activities, a lower flat rate applies,
• rental income has its own, lowest rate.

Consider the level of your actual costs

The flat rate is especially worthwhile if:

• you have low real expenses,
• you do not want to deal with receipts and cost records,
• your business is mainly knowledge-based (services, IT, consulting).

If, on the other hand, you have high actual costs (materials, premises, vehicle), claiming actual expenses may be more advantageous.

Be careful with multiple activities

If you carry out several different activities:

• each activity is assessed separately,
• income must be divided according to the type of activity,
• the appropriate flat rate is applied to each part.

Incorrect classification of activities is a common reason for additional tax assessments during audits.

What to watch out for when choosing a flat rate

• the flat rate must reflect reality, not just what looks more advantageous “on paper”,
• only one expense method can be applied per year,
• the flat rate affects not only tax, but also insurance contributions.

Yes, you can change the type of expenses, but only between individual tax periods (years). Within one calendar year, an OSVČ may apply only one expense method – either lump‑sum expenses or actual expenses.

When you can change the expense method

• the change is possible between two calendar years,
• the decision is reflected in the tax return for the given year,
• there is no need to notify the tax office in advance.

In other words: one expense method applies for one year, but you can choose again each new year.

What is NOT possible

• you cannot switch from lump‑sum to actual expenses during the year,
• you cannot combine lump‑sum and actual expenses in the same year,
• you cannot change the expense method retroactively after filing the tax return.

Once the tax return is filed, the chosen expense method is final.

What to watch out for when changing expenses

• switching from actual expenses to lump‑sum expenses may affect assets and depreciation,
• switching from lump‑sum to actual expenses creates an obligation to keep records and store documents,
• changing the expense method affects not only tax, but also the amount of insurance contributions.

In more complex situations (assets, vehicles, depreciation), it is advisable to calculate the impact in advance.

An OSVČ can include as expenses such costs that were incurred for the purpose of earning, securing, and maintaining income. In other words, they must have a direct connection to the business activity.

Typical expenses an OSVČ can claim

• purchase of materials, goods, and raw materials,
• costs of services (accounting, legal, IT, marketing),
• operating expenses (utilities, internet, telephone),
• rent for an office or business premises,
• work tools and equipment (computer, software, tools),
• fuel and vehicle costs for a car used for business,
• insurance related to business activity,
• training, courses, and professional literature.

When applying actual expenses, each cost must be provable and defensible.

Partially deductible expenses

Some expenses can only be claimed proportionally if they are also used privately:

• mobile phone,
• internet,
• vehicle,
• home office (workspace).

The proportion must reflect the actual business use.

What an OSVČ cannot include as expenses

• personal expenses unrelated to business,
• ordinary living expenses (food, clothing for personal use),
• fines, penalties, and sanctions,
• expenses that cannot be documented or justified in any way.

If an expense does not serve the business, it cannot be claimed even partially.

Important rule

Every expense must meet three conditions:

• it is related to business activity,
• it was actually incurred,
• it is defensible in the event of an audit.

It depends on which expense method you use. The obligation to keep receipts differs depending on whether you apply actual expenses or an expense flat rate.

When using actual expenses

If you apply actual expenses:

• yes, you must keep receipts and supporting documents,
• each expense must be provable,
• documents serve as evidence in the event of a tax authority inspection.

Documents must be kept for a statutory retention period (usually several years retrospectively).

When using the expense flat rate

If you apply the expense flat rate:

• you do not have to keep receipts for tax purposes,
• expenses are calculated as a percentage of income,
• the tax authority does not assess individual expense items.

However, you still must keep records of income and retain documents for other obligations (e.g. VAT, warranties, claims).

What to keep in mind

• if you switch from the flat rate to actual expenses, you will need documents again,
• some documents are worth keeping for practical reasons as well,
• during an inspection, the chosen expense method is always taken into account.

Actual expenses are worthwhile when an OSVČ has higher real costs than the expenses that would be calculated using the expense flat rate. The key factor is not convenience, but the resulting amount of tax and insurance contributions.

When actual expenses are more advantageous

• if you have high costs for materials or goods,
• if you operate an office, workshop, or business premises,
• if you use a car for business and incur real vehicle-related costs,
• if you pay rent, utilities, services, or employees,
• if your actual expenses are higher than the flat-rate expenses.

In these cases, actual expenses allow you to reduce the tax base more effectively than the flat rate.

Who actual expenses are typically suitable for

• tradespeople and manufacturers,
• goods traders,
• OSVČ with operating and investment costs,
• entrepreneurs with expensive equipment or technology.

When actual expenses are NOT worthwhile

• if you have minimal costs,
• if you mainly provide services without material inputs,
• if you do not want to deal with record-keeping and documentation.

In these cases, the expense flat rate is usually simpler and often more advantageous.

What to watch out for

• actual expenses must be provable,
• you must keep documents and maintain records,
• it is advisable to recalculate the benefits every year.

The most common mistakes with OSVČ expenses arise mainly from misunderstanding the difference between lump‑sum and actual expenses, incorrect classification of costs, or underestimating the burden of proof. These mistakes can lead to additional tax assessments, penalties, or sanctions.

Claiming personal expenses as business expenses

• including purely personal costs (food, everyday clothing),
• purchases with no clear connection to business activity,
• attempts to “push through” virtually anything as an expense.

If an expense does not serve the business, it cannot be claimed even partially.

Incorrect combination of lump‑sum and actual expenses

• combining lump‑sum and actual expenses in the same year,
• claiming individual costs when using a lump‑sum,
• trying to change the expense method during the year.

Within one calendar year, it is possible to use only one expense method.

Undocumented or indefensible expenses

• missing receipts and invoices when using actual expenses,
• illegible or incomplete documentation,
• costs without a clear description of purpose.

During an audit, each expense must be provable and defensible.

Incorrect application of proportional expenses

• claiming 100 % of costs for items also used privately,
• unrealistic usage ratios (e.g. car, phone, apartment),
• lack of logic or records supporting the proportion.

The proportion must correspond to the actual business use.

Incorrect classification of activity for lump‑sum expenses

• applying a higher lump‑sum rate than the OSVČ is entitled to,
• assessing based on the trade name instead of the actual activity,
• failing to split income when multiple types of activities are performed.

Using an incorrect lump‑sum rate is a common reason for additional tax assessments during audits.

Underestimating the impact of expenses on insurance contributions

• focusing only on income tax and ignoring social and health insurance,
• failing to calculate the impact of expense changes on future contributions,
• choosing an expense method without an overall recalculation.

Expenses affect both tax and insurance contributions, not just one item.

No, the vast majority of OSVČ in the Czech Republic do not have to keep formal accounting records (formerly known as double-entry accounting). The law only imposes this obligation upon exceeding a very high turnover. The standard for most entrepreneurs is tax records (daňová evidence) or records of income.

When does formal accounting apply to you (Obligation)?

• Turnover over CZK 25 million: If your turnover for the previous calendar year exceeded this threshold, you become an accounting entity.
• Entry in the Commercial Register: If you have registered yourself voluntarily (this applies to only a fraction of OSVČ).
• Voluntary decision: If you want a detailed overview of costs and revenues (e.g., for bank loan purposes).

What do other OSVČ keep instead?

• Flat-rate tax (Paušální daň): You keep almost no records; only a basic record of income is needed to monitor the turnover limit.
• Flat-rate expenses (% of income): You keep records of income and receivables. You do not need to keep receipts for your expenses.
• Tax records (Daňová evidence): If you claim actual expenses. You track income, expenses, assets, and liabilities.

Important for 2026:

Regardless of which method you use, the state in 2026 prefers digital archiving of documents. Thanks to mandatory data boxes and electronic communication with the tax office, it is no longer necessary to store shoeboxes full of paper receipts—a legible digital version is sufficient.

Summary:

Unless your annual turnover exceeds CZK 25 million, the term "accounting" in practice usually just means tax records, which you can handle yourself or with the help of a simple online invoicing program.

Tax records (daňová evidence) are a simplified form of record‑keeping that most OSVČ use to track income, expenses, assets, and liabilities for the purpose of determining income tax.

Tax records are not accounting. They are administratively simpler and are primarily used to correctly calculate the tax base and mandatory contributions.

What is tracked in tax records

• income from business activities (when it is actually received),
• expenses related to business (when they are actually paid),
• assets used for business purposes,
• liabilities and receivables.

Records are kept on a cash basis, meaning according to actual cash flows, not according to the date an invoice is issued.

Who can keep tax records

• OSVČ who are not required to keep accounting records,
• OSVČ applying actual expenses,
• OSVČ who are not accounting entities under the law.

Tax records are the most common choice among small and medium‑sized entrepreneurs.

What tax records are not

• they are not accounting,
• they do not track costs and revenues like accounting does,
• they do not require financial statements.

Their purpose is tax clarity, not detailed financial analysis of the business.

The difference between accounting and OSVČ record‑keeping lies mainly in the scope, complexity, and purpose of the records kept. They are not the same thing, and each form has different legal requirements and administrative demands.

Tax records (daňová evidence)

Tax records are a simpler form of business tracking, used primarily to correctly calculate income tax.

• track actual income and expenses,
• record assets, liabilities, and receivables,
• operate on a cash basis (when money is actually received or paid),
• are typical for the majority of OSVČ.

Tax records are less administratively demanding and are not considered accounting under the law.

Accounting

Accounting is a comprehensive financial record‑keeping system that provides a detailed overview of a business’s financial performance.

• tracks costs and revenues,
• works on an accrual basis (time matching of income and expenses),
• requires preparation of financial statements,
• is mandatory only for certain OSVČ.

Accounting is significantly more demanding in terms of knowledge, time, and administrative workload.

Key differences at a glance

• tax records = simpler, tax‑focused,
• accounting = detailed, focused on overall financial performance,
• most OSVČ keep tax records, not accounting.

The choice between accounting and record‑keeping is not voluntary, but depends on statutory conditions and the specific situation of the OSVČ.

An OSVČ must keep such records that allow the correct determination of income tax and mandatory contributions and that can withstand a potential inspection. The scope of records depends on whether the OSVČ keeps tax records, accounting records, or applies lump‑sum expenses.

Basic records that every OSVČ must keep

• records of income from business activity,
• records of expenses (if not applying lump‑sum expenses),
• an overview of assets used for business purposes,
• records of liabilities and receivables.

These records form the basis for the tax return as well as reports for insurance institutions.

Records when keeping tax records

If an OSVČ keeps tax records, they must track:

• actually received income (date of receipt),
• actually paid expenses,
• long‑term assets and changes to them,
• receivables and liabilities.

Records are kept on a cash basis – the movement of money is decisive.

Records when applying lump‑sum expenses

If an OSVČ applies the expense flat rate:

• they record only income,
• they track assets and receivables,
• they do not keep detailed expense records.

Even when using lump‑sum expenses, income must be accurately and provably documented.

Additional mandatory records depending on the situation

• VAT records (if the OSVČ is a VAT payer),
• cash records,
• records of invoices (issued and received),
• payroll records (if the OSVČ employs staff).

The specific scope of records always depends on the actual situation of the OSVČ.

No, an OSVČ is not legally required to have a business bank account. Czech legislation does not explicitly impose an obligation for an OSVČ to open a separate bank account used exclusively for business purposes.

When a business account is NOT mandatory

• if you operate as an OSVČ and are not a legal entity,
• if no special obligation is imposed by a bank or another institution,
• if you are able to keep a clear overview of income and expenses even on a personal account.

From the state’s point of view, an OSVČ may also use a personal bank account.

When a business account is recommended

• if you want to separate personal and business finances,
• if you have a higher volume of payments and invoices,
• if you are a VAT payer,
• if it is required by a bank, client, or payment gateway.

A business account simplifies record‑keeping and control of cash flows, but it is not a legal obligation.

What to watch out for when using a personal account

• the bank may have restrictions on business use in its terms and conditions,
• you must be able to clearly distinguish business and personal transactions,
• during an inspection, account movements must be clear and provable.

It is recommended to maintain at least separate records, even if only one bank account is used.

Yes, an OSVČ can use a personal bank account. Czech legislation does not prohibit OSVČ from using a personal account for business and does not impose an obligation to have a separate business account.

When using a personal account is acceptable

• if you operate as an OSVČ (not as a company),
• if you are not a VAT payer with a high volume of transactions,
• if you can clearly separate business and personal payments,
• if the bank does not prohibit it in its terms and conditions.

From the tax authority’s perspective, the type of account is not decisive, but rather the clarity and traceability of transactions.

What to watch out for when using a personal account

• mixing personal and business payments makes record‑keeping more difficult,
• during an inspection, you must be able to explain every business‑related income,
• the bank may restrict or close a personal account if you breach its business conditions.

It is recommended to at least internally label business transactions (e.g. using notes or descriptions for transfers).

When it is better to have a business account

• if you have a higher volume of transactions,
• if you want a clear separation of finances,
• if you are a VAT payer,
• if you use payment gateways or business tools.

A business account is not mandatory, but it often significantly simplifies record‑keeping and financial control.

An OSVČ must keep documents for a legally prescribed period, so they can be presented in the event of an inspection by the tax authority, a health insurance company, or the Czech Social Security Administration. The retention period varies depending on the type of document.

Basic retention period for tax documents

Tax documents (invoices, receipts, income and expense records) must be kept:

• for at least 3 years from the end of the tax period,
• during this period, the tax authority may carry out a tax audit.

In practice, however, it is recommended to archive documents for at least 5 years, as time limits may be extended (e.g. in the case of additional tax returns or inspections).

Documents related to social and health insurance

Documents related to insurance contributions should be kept:

• for 10 years – especially statements submitted to the Czech Social Security Administration and health insurance companies,
• confirmations of paid advances and additional payments.

These documents may affect, for example, future pension entitlements.

Accounting records and fixed assets

If an OSVČ keeps accounting records or registers assets:

• accounting documents and financial statements are archived for 5 years,
• documents related to fixed assets are kept for the duration of their use and for several years after disposal.

Electronic vs. paper documents

• documents may be stored in electronic form,
• they must be readable, complete, and available at any time,
• the form of archiving is flexible, but the content must remain unchanged.

Electronic archiving is fully valid if these conditions are met.

What is important to keep in mind

• retention periods are counted from the end of the year, not from the date of issue,
• during an inspection, documents must be presented within the required time limit,
• missing documents may lead to additional tax assessments and penalties.

Cash income must be recorded by an OSVČ just as carefully as cashless payments. The law does not focus on the form of payment, but on ensuring that every income is properly recorded, traceable, and included in the records.

How to record cash income in practice

• record the date the cash was received,
• state the amount,
• describe the reason for the income (what the cash was received for),
• link the income to a specific contract or invoice.

The decisive moment is when the money was actually received.

Tax records and cash

If an OSVČ keeps tax records:

• cash income is entered into the income records,
• records are kept on a cash basis,
• the income is included on the day the cash is received.

Receipts and supporting documents

Each cash income should be supported by a document:

• an issued invoice marked “paid in cash”,
• or a cash receipt (cash-in voucher),
• or another provable record.

The document serves as evidence in the event of an inspection.

Cash records when applying lump-sum expenses

If an OSVČ applies the expense flat rate:

• only income is recorded,
• the form of payment (cash / transfer) is not decisive,
• cash income must still be equally traceable.

What to watch out for

• unrecorded cash = risk of additional tax assessment,
• income must correspond to issued documents,
• cash income must not “disappear outside the records”.

Cash is a more sensitive area from the perspective of inspections, which is why it pays off to keep records clear and complete.

Invoicing records are not just about collecting papers, but about having a system that allows you to prove your income and expenses to the tax office at any time. In 2026, digital records are the standard, minimizing errors and saving time when filing tax returns.

Recording methods based on business type:

• Flat-rate expenses: You are only mandatory to record issued invoices (income). You do not need received invoices (expenses) for tax purposes, but we recommend archiving them to keep track of your profitability.
• Tax records (Daňová evidence): You record both issued and received invoices. Here, the payment date (when the money actually arrived or left) is key, not the date of issue.
• VAT payers (Plátci DPH): Must record invoices in a stricter regime with regard to the DUZP (date of taxable supply) for monthly/quarterly VAT returns and control reports.

What must every invoice in the records contain?

• Variable symbol (invoice number) for pairing with the payment.
• Identification of parties (ID Number/IČO, Tax ID/DIČ, name).
• A clear description of the service or goods.
• Currency and the total amount.
• Payment status: An overview of who owes you money is the foundation of financial health.

Modern trends: Paper vs. Cloud

In 2026, the law fully recognizes electronic archiving. You do not need to print invoices. It is sufficient to have them in PDF format or in an online invoicing system. The advantage of the cloud is that your accountant has real-time access and you can easily link them to your bank account via API (automatic payment pairing).

What to watch out for?

The biggest risk is a mismatch between the bank and the invoices. During an audit, the tax office compares bank statements with your records. Every movement on the account should have its corresponding document.

No, an OSVČ is not legally required to have an accountant. Record‑keeping, tax returns, and mandatory statements can be handled independently, provided the business has a simple structure and low administrative complexity.

When you do NOT need an accountant

• if you have a small number of documents and simple income,
• if you apply the expense flat rate,
• if you are not a VAT payer,
• if you are able to keep basic records on your own.

In these cases, a simple spreadsheet or a basic online tool is often sufficient.

When an accountant is worth it

• if you keep tax records with actual expenses,
• if you are a VAT payer,
• if you have a larger volume of invoices, cash transactions, or assets,
• if you employ staff,
• if you want to minimize the risk of errors and penalties.

An accountant is also beneficial if you want tax optimization or simply do not have time to deal with administration.

Accountant vs. tax advisor

• an accountant handles records, documents, and statutory statements,
• a tax advisor deals with more complex tax matters, optimization, and representation during audits.

For a typical OSVČ, an accountant is usually sufficient; a tax advisor is used more exceptionally.

What is important to keep in mind

• responsibility for taxes always lies with the OSVČ, not the accountant,
• errors in records can lead to additional tax assessments and penalties,
• a good accountant often saves more money than they cost.

An accountant is not an obligation, but in many cases a sensible investment in peace of mind and certainty.

VAT (Value Added Tax / DPH) is an indirect tax that forms the largest part of the state budget revenue. As an entrepreneur, you act as a "collector": you add the tax to your price, collect it from the customer, and subsequently remit it to the state.

Current VAT rates in the Czech Republic for 2026:

• 🚀 21% (Standard rate): Most goods and services.
• 🥗 12% (Reduced rate): Food, medicine, child car seats, accommodation services, catering, water, and sewage.
• 📚 0% (Exempt): Books (including e-books and audiobooks).

When does an OSVČ become a VAT payer?

The main factor is turnover. If your turnover for 12 consecutive months exceeds CZK 2,000,000, you must mandatorily register for VAT. However, you can also become a payer voluntarily, which is beneficial if your clients are companies (VAT payers) and you have high input costs.

The treacherous trap: Identified Person (Identifikovaná osoba)

Many OSVČ are unaware that even as non-payers, they must deal with VAT if:

• They purchase services from abroad (e.g., ads on Facebook, Google, LinkedIn or software like Adobe, Canva, Zoom).
• They sell services to another EU member state.

In such cases, you become a so-called identified person. You must report and pay VAT on these purchases in the Czech Republic, but you are not entitled to a VAT deduction (input tax credit).

Why is VAT a "high-risk discipline"?

• Control Statement (Kontrolní hlášení): As a payer, you must electronically report who you invoiced every month.
• Deadlines: Filing and payment must take place by the 25th day of the following month.
• Fines: The tax office tracks the electronic footprint of payments. Late VAT registration carries the risk of heavy fines and retroactive tax assessment on your entire turnover.

An OSVČ becomes a VAT payer at the moment when the statutory conditions set out in the VAT Act are met. The most common reason is exceeding the turnover threshold, but there are also other situations in which VAT payer status arises or may arise.

Mandatory VAT registration after exceeding turnover

An OSVČ must become a VAT payer if:

• their turnover for the last 12 consecutive months exceeds the statutory limit,
• turnover is monitored on a rolling basis, not per calendar year,
• turnover includes taxable supplies excluding VAT.

From the moment the limit is exceeded, the OSVČ has the obligation to register for VAT and to apply VAT in accordance with the law.

Voluntary VAT registration

An OSVČ may also become a VAT payer voluntarily if:

• they submit a registration request,
• the tax office approves the application,
• it makes economic or business sense (e.g. B2B clients).

Voluntary VAT registration is not automatic – the tax office assesses the credibility and reality of the business activity.

Other situations where VAT payer status may arise

• acquisition or takeover of a business from an existing VAT payer,
• specific situations defined by the VAT Act,
• not standard cross‑border services – these usually lead to the identified person regime rather than full VAT registration.

What you need to keep an eye on

• turnover must be monitored continuously every month,
• late registration can result in additional VAT assessments and penalties,
• VAT registration significantly changes invoicing and administrative obligations.

Timely identification of the moment when VAT payer status arises is crucial, because mistakes related to VAT are among the most expensive.

The VAT threshold for OSVČ in the Czech Republic is CZK 2,000,000. This limit determines when the obligation to register as a VAT payer arises.

VAT is not assessed based on profit, but on turnover, i.e. the total value of taxable supplies excluding VAT.

How the CZK 2,000,000 limit is monitored

The law allows the limit to be monitored in two ways:

• over the last 12 consecutive months,
• over the calendar year.

It depends on which method the OSVČ chooses, as each has different consequences.

Exceeding the limit within a 12‑month period

• any period of 12 consecutive months is monitored,
• after exceeding the limit, an obligation arises to submit a VAT registration application without delay,
• VAT payer status arises shortly after registration.

This method leads to a faster establishment of VAT payer status.

Exceeding the limit in a calendar year

• turnover is monitored from January 1 to December 31,
• if turnover exceeds CZK 2,000,000, VAT payer status arises from January 1 of the following year,
• the VAT registration application is submitted only after the end of the year.

This regime is administratively more predictable.

What is included in VAT turnover

• income from taxable supplies in the Czech Republic,
• supplies exempt with the right to deduct VAT,
• amounts excluding VAT.

Conversely, VAT turnover does not include, for example, sales of fixed assets or certain exempt supplies without the right to deduct VAT.

What to watch out for

• turnover is not monitored based on invoices, but on the taxable supply date,
• late registration may lead to additional VAT assessments and penalties,
• exceeding the limit must be monitored continuously.

A non‑VAT payer is an OSVČ who is not registered for value added tax (VAT) and does not charge VAT to their customers. This is the standard situation for most smaller entrepreneurs who have not exceeded the statutory threshold or have not registered for VAT voluntarily.

How a non‑VAT payer operates in practice

• does not show VAT on invoices,
• invoices only the final price,
• has no right to deduct VAT from received supplies,
• does not file VAT returns.

For the customer, the price charged by a non‑VAT payer is final – no VAT is added.

Who is typically a non‑VAT payer

• OSVČ with turnover below the statutory limit,
• starting entrepreneurs,
• OSVČ focused on end customers (B2C),
• entrepreneurs for whom VAT registration is not economically beneficial.

What a non‑VAT payer must keep an eye on

• monitoring turnover due to potential VAT registration,
• being careful with services and purchases from abroad,
• correctly stating on documents that they are a non‑VAT payer.

In certain situations (e.g. foreign services), even a non‑VAT payer may become an identified person, which is a different regime from full VAT payer status.

Summary

A non‑VAT payer is an OSVČ who:

• does not charge VAT to customers,
• has no right to deduct VAT,
• has simpler administration than a VAT payer.

An Identified person for VAT purposes is an OSVČ (or another person) who is not a VAT payer, but the law imposes VAT-related obligations in clearly defined situations, most commonly when dealing with cross-border transactions.

An identified person is a special regime – it is neither a non‑VAT payer “without obligations” nor a full VAT payer.

When an OSVČ becomes an identified person

An OSVČ must register as an identified person especially when they:

• receive a service from abroad (e.g. advertising from Google or Facebook, software),
• provide a service to another EU country to a person registered for VAT,
• purchase goods from the EU above the statutory limit,
• carry out another cross‑border transaction where the law requires it.

In all of these cases, the OSVČ may remain a non‑VAT payer, but must fulfill selected obligations towards the tax authority.

What obligations an identified person has

• register for VAT as an identified person,
• declare and pay VAT on specific transactions,
• file a VAT return (only for the affected period),
• if applicable, submit a recapitulative statement.

These obligations arise only in connection with specific transactions, not comprehensively as with a VAT payer.

What an identified person cannot do

• does not charge VAT to Czech customers,
• has no right to deduct VAT,
• does not automatically become a VAT payer.

An identified person therefore remains a “non‑VAT payer”, but with targeted VAT obligations.

What to be especially careful about

• the obligation to register arises at the moment the transaction takes place,
• late registration may lead to additional VAT assessments and penalties,
• digital services from abroad are the most common pitfall.

For OSVČ, the identified person regime is one of the most frequently overlooked obligations.

No, not every OSVČ has to charge VAT. The obligation to charge VAT arises only if the OSVČ is a VAT payer or if, in a specific situation, they have a statutory obligation to declare VAT.

When an OSVČ does NOT have to charge VAT

• if the OSVČ is a non‑VAT payer,
• if they have not exceeded the statutory VAT threshold,
• if they do not provide or receive supplies that would create a VAT obligation.

In these cases, the OSVČ:

• issues invoices without VAT,
• does not pay VAT to the tax office,
• does not file VAT returns.

When an OSVČ MUST charge VAT

An OSVČ is required to charge VAT mainly if:

• they are a VAT payer (mandatory or voluntary),
• they carry out taxable supplies under the VAT regime,
• they have exceeded the threshold and VAT registration has arisen.

In such cases, the OSVČ:

• adds VAT to prices on invoices,
• pays VAT to the tax office,
• may claim a VAT deduction on inputs.

Special situation: identified person

Even if an OSVČ is not a VAT payer, they may have an obligation to declare and pay VAT in specific cases (e.g. services received from abroad).

• VAT is dealt with only for the specific transaction,
• the OSVČ does not become a full VAT payer,
• they have no right to deduct VAT.

This is handled under the identified person regime.

What is important to remember

• not every OSVČ charges VAT automatically,
• the decisive factor is VAT payer status or a specific situation,
• incorrect non‑charging of VAT is among the most costly mistakes.

VAT registration is carried out by submitting a VAT registration application to the tax office. An OSVČ registers either mandatorily (after meeting statutory conditions) or voluntarily.

When an OSVČ must register for VAT

• after exceeding the statutory turnover threshold,
• when mandatory VAT payer status arises under the VAT Act,
• when an obligation arises as an identified person,
• or voluntarily upon their own request.

The most common mistake is late registration, which leads to additional VAT assessments and penalties.

How VAT registration works step by step

1. completing the VAT Registration Application,
2. submitting the application electronically (via data box or the Financial Administration portal),
3. communication with the tax office (possible requests for additional information),
4. issuance of the registration decision.

Registration is carried out with the locally competent tax office.

How the registration is submitted

• electronically via the Moje daně portal,
• via a data box,
• exceptionally in paper form (if permitted by law).

Electronic submission is now the standard and the fastest option.

What the tax office may require during registration

• a description of the business activity,
• contracts with customers or suppliers,
• documents proving completed taxable supplies,
• an explanation of the economic rationale for registration.

This mainly applies to voluntary registration, which is not automatic.

From when an OSVČ becomes a VAT payer

VAT payer status arises:

• for mandatory registration from the date stipulated by law,
• for voluntary registration from the date stated in the decision of the tax office.

From this date, the OSVČ must charge VAT, file VAT returns, and keep VAT records.

What to be especially careful about

• registration must be timely,
• VAT can be assessed retroactively,
• after registration, invoicing and administration change significantly.

VAT rates in the Czech Republic are set by the VAT Act and vary depending on the type of goods or services. As a VAT payer, an OSVČ must always determine the correct VAT rate, because applying the wrong rate is one of the most common reasons for additional tax assessments and penalties.

Basic VAT rates in the Czech Republic

• 21 % – standard VAT rate
• 12 % – reduced VAT rate

Since 2024, the Czech Republic has only two VAT rates. The former second reduced rate has been abolished.

Standard VAT rate (21 %)

The standard rate applies to most goods and services, unless the law explicitly provides for a reduced rate.

• common services and consulting,
• IT services, marketing, advertising,
• sale of goods that are not subject to the reduced rate.

Reduced VAT rate (12 %)

The reduced rate applies only to goods and services explicitly listed by law, mainly in the area of basic necessities.

• food,
• books and selected printed materials,
• medicines and medical devices,
• selected housing-related services,
• water supply and sewage services.

For the reduced rate, it is always necessary to verify whether the specific supply truly falls into this category.

When VAT does not apply

• if the OSVČ is a non‑VAT payer,
• for supplies exempt from VAT under the law,
• for certain cross‑border supplies (special regimes).

What to be especially careful about

• the VAT rate is determined by the nature of the supply, not by the OSVČ’s business sector,
• an incorrect rate = risk of additional VAT assessment and penalties,
• in unclear cases, it is advisable to consult an accountant or tax advisor.

Applying the correct VAT rate is a key responsibility of every VAT payer OSVČ.

VAT on services provided abroad works differently than for services in the Czech Republic. What matters is not the OSVČ’s registered seat, but primarily who the customer is and where they are established. This is exactly where OSVČs make the most frequent and most expensive mistakes.

Basic rule for services provided abroad

For services, VAT is determined by the so‑called place of supply. In most cases, the following applies:

• B2B (company / OSVČ) → the place of supply is at the customer’s location,
• B2C (private individual) → the place of supply is at the supplier’s location.

Based on this, it is determined whether VAT is charged, not charged, or declared in a different way.

Services to the EU – company or OSVČ (B2B)

If an OSVČ provides a service to a company or OSVČ in another EU member state:

• VAT is not charged on the invoice,
• the reverse charge mechanism is applied,
• the invoice must state “tax to be paid by the customer”,
• the OSVČ must submit a recapitulative statement,
• the OSVČ becomes an identified person (if not already a VAT payer).

Typical examples include IT services, marketing, or consulting for an EU company.

Services to the EU – private individual (B2C)

If an OSVČ provides a service to a private individual in the EU:

• the place of supply is usually in the Czech Republic,
• if the OSVČ is a VAT payer, they charge Czech VAT,
• if they are a non‑VAT payer, they do not charge VAT.

Exceptions exist for digital services, accommodation, or events.

Services outside the EU

When providing services outside the EU (e.g. USA, UK):

• the place of supply is usually outside the Czech Republic,
• VAT is not charged,
• the supply is generally outside the scope of Czech VAT.

Nevertheless, the invoice must be issued correctly and the transaction properly recorded.

Services received from abroad

If an OSVČ receives a service from abroad (e.g. Google Ads, Facebook, software):

• an obligation arises to declare VAT in the Czech Republic,
• the OSVČ must register as an identified person,
• VAT is paid to the Czech tax office,
• without the right to deduct VAT (if not a VAT payer).

This is the most common pitfall for non‑VAT payers.

What to be extremely careful about

• incorrect determination of the customer type (B2B vs. B2C),
• failure to register as an identified person,
• missing recapitulative statement,
• incorrect wording on the invoice.

For services provided abroad, VAT is the most risky area for OSVČ, and maximum caution is strongly recommended.

VAT is the highest-risk area for an OSVČ. In 2026, with the Financial Administration being fully digitalized, errors are detected almost immediately. Tax assessments, penalties, and sanctions can be devastating for small business owners.

1. Late VAT registration (Limit CZK 2,000,000)

Many OSVČ mistakenly track turnover based on the calendar year. However, the law requires you to monitor 12 consecutive months (a rolling year). If you exceed the limit and do not register by the 15th day of the following month, the tax office will assess VAT on your entire turnover retroactively.

2. The "Identified Person" trap

• Digital services: Buying ads on Facebook, TikTok, Google, or subscriptions like Canva and Adobe automatically makes you an identified person.
• The Mistake: Entrepreneurs think that as non-payers, they don't have to deal with VAT. The opposite is true – you must pay VAT on these services in the Czech Republic, even though you are not entitled to a deduction.

3. Wrong rates (21% vs. 12%)

Following major shifts in VAT rates (2024/2025), confusion still occurs. Typical errors include the misclassification of services in hospitality, construction, or beverage sales. Remember that since 2024, books are at a zero rate (0%), while magazines and newspapers remain at 12%.

4. Deficiencies in the Control Statement (Kontrolní hlášení)

The Control Statement is the "whip" for VAT payers. An error in the supplier's Tax ID (DIČ), a wrong invoice number, or a mismatch in the date of taxable supply (DUZP) triggers an automatic notice from the tax office. If you do not respond to the notice in your data box within 5 working days, heavy fixed fines follow.

5. Confusing B2B and B2C in foreign trade

Invoicing abroad? You must distinguish between a business client (B2B – reverse charge regime) and an end consumer (B2C – which often requires handling the One Stop Shop / OSS regime).

Expert Advice:

In 2026, you can no longer manage VAT "on the fly" in Excel. Use modern invoicing systems that automatically alert you to turnover limits and Identified Person obligations.

An OSVČ invoice must be clear, understandable, and contain the legally required information in order to be a valid tax document. The exact scope of required details depends on whether the OSVČ is a non‑VAT payer, a VAT payer, or an identified person.

Basic details that must appear on every OSVČ invoice

• document designation (e.g. Invoice, Tax document),
• unique invoice number,
• date of issue,
• due date,
• date of taxable supply (if different),
• OSVČ first and last name,
• Company ID (IČO),
• registered address or place of business,
• customer name or business name,
• customer address,
• description of the supplied goods or services,
• total amount payable.

These details must always be included, regardless of whether the OSVČ charges VAT.

Additional mandatory details for a VAT payer

If the OSVČ is a VAT payer, the invoice must also include:

• VAT ID (DIČ) of the OSVČ,
• VAT ID of the customer (if they are a VAT payer),
• tax base,
• VAT rate (21 % or 12 %),
• VAT amount,
• a breakdown of amounts by VAT rate.

Special wording on the invoice

• “Non‑VAT payer” – if the OSVČ is not a VAT payer,
• “Tax to be paid by the customer” – in the reverse charge regime,
• information about VAT exemption, if applicable,
• currency – if the invoice is issued in a foreign currency.

How the invoice should look

• clear structure,
• easily readable dates and amounts,
• no unnecessary or confusing information.

A correctly issued invoice is the foundation of smooth accounting, taxation, and inspections and also presents a professional image to clients.

An OSVČ invoice must contain legally required details in order to be a valid accounting and tax document. The scope of mandatory information varies slightly depending on whether the OSVČ is a VAT payer, non‑VAT payer, or an identified person.

Basic details that must be included on every invoice

• document title (e.g. “Invoice”, “Tax document”),
• invoice number (unique and sequential),
• issue date,
• due date,
• date of taxable supply (if different),
• OSVČ full name,
• Company ID (IČO),
• registered address or place of business,
• customer name / company name,
• customer address,
• description of goods or services provided,
• total amount payable.

These details must always be included, regardless of whether the OSVČ is a VAT payer.

Additional mandatory details for VAT payers

If the OSVČ is a VAT payer, the invoice must also include:

• VAT ID (DIČ) of the OSVČ,
• VAT ID (DIČ) of the customer (if they are a VAT payer),
• tax base,
• VAT rate (21 % or 12 %),
• VAT amount,
• a breakdown of amounts by individual VAT rates.

Special information required in certain situations

• the text “Non‑VAT payer” – if the OSVČ is not a VAT payer,
• the text “Tax to be paid by the customer” – for reverse charge,
• a reference to VAT exemption – if applicable,
• currency – if the invoice is issued in a foreign currency.

What to watch out for

• missing mandatory information may result in the invoice being rejected,
• incorrect VAT details can lead to additional tax assessments and penalties,
• all invoice details must reflect the actual situation.

A correctly issued invoice is the foundation of smooth and trouble‑free OSVČ business operations.

No, an OSVČ cannot issue an invoice without an IČO. If an OSVČ carries out business based on a trade license or other business authorization, the IČO is a mandatory item on the invoice.

Why the IČO must be on the invoice

The IČO uniquely identifies the entrepreneur and serves to clearly show that it is a business activity, not a private individual.

• it is required by the Accounting Act and tax regulations,
• it is necessary for proper identification of the supplier,
• without an IČO, the invoice may be considered invalid or non‑deductible.

When an invoice without an IČO is possible

An invoice without an IČO may be issued only by a person who:

• is not an OSVČ,
• has not been assigned an IČO,
• provides a one‑off supply outside of business activity (e.g. author’s royalties, occasional income).

In such a case, however, it is not an OSVČ invoice, but a different type of document.

A common misconception among OSVČ

• “I am an OSVČ, but I invoice as a private individual” – ❌ not valid,
• “I don’t have to state an IČO because I am not a VAT payer” – ❌ not valid,
• “Name and address are enough” – ❌ not valid.

Once you have an IČO, it must appear on every business invoice.

Summary

• An OSVČ must state the IČO on invoices,
• an invoice without an IČO is not a proper OSVČ invoice,
• exceptions apply only to non‑business individuals.

Foreign invoicing for an OSVČ primarily depends on whether you invoice within the EU or outside the EU and whether the customer is a business (B2B) or a private individual (B2C). This exact combination determines whether VAT is shown on the invoice and what mandatory wording must be included.

Basic breakdown of foreign invoicing

• EU × non‑EU,
• business / OSVČ (B2B) × private individual (B2C),
• VAT payer × non‑VAT payer.

Without correct classification, there is a high risk of VAT errors and missing mandatory reports.

Invoicing to the EU – business or OSVČ (B2B)

If you invoice a company or OSVČ registered for VAT in another EU country:

• VAT is not charged on the invoice,
• the reverse charge mechanism applies,
• the invoice must include the text “tax to be paid by the customer”,
• you must verify a valid VAT ID of the customer,
• a recapitulative statement must be submitted,
• a non‑VAT payer becomes an identified person.

Typical examples: IT services, marketing, consulting, development.

Invoicing to the EU – private individual (B2C)

If you invoice a private individual in the EU:

• the place of supply is usually in the Czech Republic,
• a VAT payer charges Czech VAT,
• a non‑VAT payer does not charge VAT.

Exceptions apply to digital services and certain specific activities.

Invoicing outside the EU (e.g. USA, UK)

If you invoice outside the EU:

• VAT is usually not charged,
• the supply is outside the scope of Czech VAT,
• the invoice often includes the text “supply outside the scope of VAT”.

This applies to both VAT payers and non‑VAT payers.

What must not be missing on a foreign invoice

• supplier identification (OSVČ), including Company ID (IČO),
• customer identification (including VAT ID, if applicable),
• a clear description of the service or goods,
• correct VAT wording (reverse charge / outside scope of VAT),
• currency and total amount payable.

What to be especially careful about

• correct determination of B2B vs. B2C,
• obligation to register as an identified person,
• missing recapitulative statements,
• incorrect or missing VAT text on the invoice.

From a VAT perspective, foreign invoicing is one of the highest‑risk areas for OSVČ.

An OSVČ can issue invoices in a foreign currency without restriction. Czech law does not require invoices to be issued only in Czech crowns. What matters is correctly handling the conversion to CZK for tax purposes and, where applicable, VAT.

What an invoice in a foreign currency must contain

• the invoicing currency (e.g. EUR, USD),
• the amount payable in the foreign currency,
• all standard mandatory invoice details,
• for VAT payers, VAT information as required (see below).

The currency used on the invoice does not affect its validity, as long as all legal requirements are met.

Conversion of foreign currency to CZK for tax purposes

For tax purposes, an OSVČ must always convert income into Czech crowns (CZK).

• the Czech National Bank (CNB) exchange rate is used,
• either the daily exchange rate valid on the date the income is realized,
• or the annual unified exchange rate for the entire year.

The chosen exchange rate method must be used consistently for the entire calendar year.

VAT and invoicing in a foreign currency

If the OSVČ is a VAT payer:

• the tax base and VAT must be stated in CZK,
• the total amount payable may remain in the foreign currency,
• VAT conversion is carried out using the CNB exchange rate.

For reverse charge transactions or supplies outside the scope of VAT, VAT is not shown on the invoice, but the currency remains unrestricted.

When income arises for an invoice in a foreign currency

• under tax records, income arises on the day the payment is received,
• the amount is converted to CZK according to the selected exchange rate.

What to watch out for

• exchange rate differences between the invoice and the received payment,
• correct determination of the conversion date,
• consistency of the chosen exchange rate throughout the year,
• correct VAT conversion for VAT payers.

Invoicing in a foreign currency is common and fully legal, but it requires discipline in record‑keeping and currency conversions.

Income for an OSVČ arises depending on the method of records the OSVČ uses. What matters is not the issuance of an invoice, but when the OSVČ actually receives the money or when a taxable supply arises under the law.

When income arises under tax records

If an OSVČ keeps tax records (the most common case), income arises:

• on the day the payment is received (to a bank account or in cash),
• regardless of when the invoice was issued,
• regardless of the due date.

An unpaid invoice is therefore not considered income until the money is actually received.

When income arises with lump‑sum expenses

Even when applying the expense flat rate, the same principle applies:

• income arises only upon receipt of the money,
• actual cash inflows are tracked,
• records are kept based on cash movements.

When income arises under accounting

If an OSVČ keeps accounting records (less common):

• income (revenue) arises at the moment the supply is provided,
• it does not depend on when the invoice is paid,
• accrual accounting is used.

This regime is administratively more complex and differs from tax records.

Advances and OSVČ income

If an OSVČ receives an advance payment:

• under tax records, the advance is income at the moment it is received,
• any later balance payment is a separate item of income,
• issuing an advance invoice alone does not create income.

What is important to remember

• an invoice ≠ income,
• what matters is the movement of money (for most OSVČ),
• unpaid invoices are not included in income,
• incorrect determination of income leads to errors in taxes and contributions.

Paid invoices must be recorded by an OSVČ in a way that clearly proves when and in what amount the income arose. The method of record‑keeping depends on whether the OSVČ keeps tax records, accounting records, or applies lump‑sum expenses.

Recording paid invoices under tax records

If an OSVČ keeps tax records:

• a paid invoice is recorded on the day the payment is received,
• the actually received amount is recorded (bank transfer or cash),
• what matters is the receipt of money, not the issuance of the invoice.

An unpaid invoice is not included in income.

How to correctly mark a paid invoice

• mark the invoice as paid,
• state the payment date,
• state the payment method (transfer / cash),
• match the payment to the specific invoice.

This applies to both bank payments and cash payments.

Records when applying lump‑sum expenses

If an OSVČ applies the expense flat rate:

• only income is recorded,
• a paid invoice is recorded on the day the money is received,
• individual expenses are not recorded.

Here as well, the actual payment received is decisive.

Records under accounting

If an OSVČ keeps accounting records:

• the invoice is recorded upon issuance as a receivable,
• the payment is recorded as collection of the receivable,
• income arises regardless of payment.

What to watch out for

• discrepancies between invoices and the bank account,
• missing marking of paid invoices,
• counting income twice (advance payment + balance payment),
• ambiguities with partial payments.

Clear and well‑organized records of paid invoices are crucial for correct taxes, contributions, and a trouble‑free audit.

If a client does not pay an issued invoice, it is not only a business problem, but also a matter of taxes, record‑keeping, and further steps. It is important to know that an unpaid invoice is not automatically OSVČ income.

Unpaid invoice and taxes

If you keep tax records or apply lump‑sum expenses:

• an unpaid invoice is not included in income,
• you do not pay income tax on it,
• you do not pay health or social insurance contributions on it.

Income arises only at the moment the client actually pays.

Exception: accounting

If you keep accounting records:

• the invoice becomes revenue already upon issuance,
• non‑payment is handled through allowances or write‑off of the receivable,
• this is a more complex process than with tax records.

How to proceed with the client

• send a payment reminder (preferably in writing),
• point out the due date and any penalties,
• agree on an alternative due date or instalments,
• as a last resort, deal with debt recovery.

It is recommended to keep everything documented (emails, contracts, orders).

VAT and an unpaid invoice

If you are a VAT payer:

• VAT is paid according to the date of taxable supply,
• you must pay VAT even on an unpaid invoice,
• a correction is possible only after statutory conditions are met.

This is a key difference compared to income tax.

What to watch out for

• not to mistakenly include an unpaid invoice in income,
• not to overlook VAT obligations if you are a VAT payer,
• not to leave unpaid invoices unresolved for a long time.

An unpaid invoice is a common situation, but the correct approach will save you taxes, stress, and potential errors during inspections.

Advances and balance payments for an OSVČ must be handled correctly from both an accounting and tax perspective. What matters is not the issuance of an advance invoice, but when and how much money the OSVČ actually receives. This is exactly where OSVČs most often make mistakes.

How advances work for an OSVČ

An advance is a payment that the client sends before the service is completed or goods are delivered.

• issuing an advance invoice does not in itself create income,
• income arises only when the advance payment is received (money is credited),
• a received advance is recorded as OSVČ income.

Under both tax records and lump‑sum expenses, a received advance is taxable income.

Balance payment after completion of the job

After completing the job, the OSVČ usually issues:

• a settlement (final) invoice,
• states the total price,
• deducts the advance already received,
• calculates the balance payment.

The balance payment is a separate item of income at the moment it is actually paid.

Recording advances and balance payments in practice

• each received payment is recorded separately,
• the advance and the balance payment are not merged into one income item,
• correct allocation of payments to a specific job is essential.

A common mistake is counting income twice (the advance + the full final invoice).

VAT and advances

If the OSVČ is a VAT payer:

• VAT must be paid already on the received advance,
• a tax document for the received payment must be issued for the advance,
• at final settlement, VAT is only recalculated.

For VAT payers, handling advances is significantly more sensitive.

What to watch out for

• do not confuse advance invoices with final invoices,
• do not tax the same amount twice,
• correctly record the date the money is received,
• for VAT payers, correctly issue tax documents for advances.

Correct handling of advances and balance payments is crucial for accurate taxes, contributions, and trouble‑free inspections.

Suspending OSVČ is an official way to temporarily stop doing business without having to cancel your trade license. During the suspension, you do not carry out any business activity and many of your obligations are significantly reduced or eliminated altogether.

When suspension of OSVČ is used

• during a temporary lack of work or contracts,
• due to illness, parental leave, or studies,
• if you want to “pause” your business for a while without closing it,
• when you want to avoid paying unnecessary contributions without income.

Suspension is suitable if you know that you want to return to business later.

How to suspend OSVČ step by step

1. report the suspension to the Trade Licensing Office (in person, online, or via Czech POINT),
2. specify the start date of the suspension (it can also be retroactive),
3. notify your health insurance company,
4. notify the Czech Social Security Administration.

The Trade Licensing Office does not automatically forward this information to all institutions, so the suspension must be reported separately.

How long OSVČ can be suspended

• suspension can be for a fixed or indefinite period,
• the end date of the suspension can be changed at any time,
• business activity can be resumed earlier than originally planned.

What happens during OSVČ suspension

• you must not carry out business activities,
• you do not pay social insurance advances,
• health insurance is handled according to your status (employee, state-insured person, self-payer),
• you do not submit statements for periods when the OSVČ was suspended.

What to watch out for

• suspension does not automatically resolve health insurance obligations,
• suspension does not affect the obligation to file a tax return for the previous period,
• during suspension, you must not issue invoices or receive business income.

Suspending OSVČ is a simple and legal way to temporarily reduce obligations and costs without permanently terminating your business.

Cancellation of OSVČ means the permanent termination of business activity. Unlike a suspension, you do not automatically return to business, and if you want to start again in the future, you must set up OSVČ from scratch.

How to cancel OSVČ step by step

1. Notify the termination of the trade at the Trade Licensing Office
   – in person, online (Citizen Portal, data box), or via Czech POINT.
2. Specify the date of business termination
   – it can also be retroactive if you have already effectively stopped doing business.
3. Notify the health insurance company
   – usually within 8 days of terminating the activity.
4. Notify the Czech Social Security Administration (ČSSZ)
   – also within the statutory deadline (typically 8 days).
5. Settle obligations with the tax office
   – taxes, tax returns, and possible deregistration from registrations (e.g. VAT).

Notification at the Trade Licensing Office does not replace notifications to insurance companies and the tax office.

What happens after OSVČ cancellation

• you must no longer carry out business activities or issue invoices,
• no new obligations to pay advances arise,
• however, you must complete all tax obligations for the period during which you were operating.

What to watch out for when cancelling OSVČ

• cancelling OSVČ does not mean the end of tax returns,
• you must submit statements for ČSSZ and the health insurance company,
• any outstanding amounts must be paid,
• documents must be retained even after OSVČ cancellation.

Cancelling OSVČ is administratively simple, but it is crucial to properly close all related obligations to avoid future problems or penalties.

Yes, you must report the cancellation of OSVČ to the authorities. Terminating your business is not automatic and must be actively reported to several institutions so that no further obligations or arrears arise.

Which authorities must be notified of OSVČ cancellation

• Trade Licensing Office – notification of termination of the trade,
• Tax Office – due to taxes and registrations,
• Health Insurance Company – termination of self‑employed activity,
• Czech Social Security Administration (ČSSZ) – termination of OSVČ for social insurance.

These institutions do not automatically share all information, therefore each notification must be made separately.

How OSVČ cancellation is reported

• in person at the authority,
• electronically (data box, Citizen Portal),
• via Czech POINT.

At the Trade Licensing Office, the cancellation can be handled with a single notification, but insurance companies and the tax office must be notified separately.

By when the cancellation must be reported

• usually within 8 days of terminating the activity (health insurance company and ČSSZ),
• the tax office according to the specific situation and registrations.

Late notification may lead to penalties or unnecessary advance payments.

What happens if you do not report the cancellation

• authorities will consider the OSVČ still active,
• obligations to pay contributions may continue to arise,
• arrears and sanctions may occur.

Proper and timely notification of OSVČ cancellation is essential to ensure that the business is truly administratively closed.

Ending OSVČ does not mean that tax obligations end immediately. Even after closing your business, you must settle taxes and contributions for the period during which you were self‑employed. A common misconception is that cancelling OSVČ means “everything is finished.”

Income tax after ending OSVČ

After ending OSVČ, you are required to:

• file an income tax return for the last year of business activity,
• report income and expenses only for the period when the OSVČ was active,
• pay the tax if a tax liability arises.

The tax return is filed by the standard deadline (even if the OSVČ no longer exists).

Health and social insurance

After ending OSVČ, you must:

• submit a statement to the health insurance company,
• submit a statement to the Czech Social Security Administration,
• pay insurance contributions for the business period,
• settle any outstanding advance payments.

The obligation to submit these statements remains, even if the OSVČ ended during the year.

VAT after ending OSVČ

If you were a VAT payer:

• you must file the final VAT return,
• settle VAT as of the termination date,
• and, if applicable, deregister from VAT.

VAT often also involves dealing with assets on which VAT deductions were previously claimed.

Advance payments after ending OSVČ

• after ending OSVČ, no new advances are paid,
• previous advances are settled in the statements,
• any overpayment may be refunded.

What to watch out for

• ending OSVČ does not remove the obligation to file returns,
• forgotten statements lead to penalties,
• taxes and contributions are settled retroactively, not on the day of cancellation.

Proper settlement of taxes after ending OSVČ is crucial to ensure the business is closed without future problems.

After ending OSVČ, an entrepreneur still has several obligations that must be fulfilled, even if they are no longer doing business and have no new income. Ending a trade license does not mean an immediate end to administration.

Tax obligations after ending OSVČ

• file an income tax return for the last year of business activity,
• report income and expenses only for the period when the OSVČ was active,
• pay the calculated tax if a tax liability arises.

The tax return is filed by the standard deadline, even if the OSVČ ended during the year.

Statements for the health insurance company and ČSSZ

After ending OSVČ, it is necessary to:

• submit an income and expense statement to the health insurance company,
• submit a statement to the Czech Social Security Administration (ČSSZ),
• pay insurance contributions if an underpayment results from the statements,
• settle paid advances (any overpayment may be refunded).

These statements are mandatory even if the OSVČ ended very early in the year.

VAT after ending OSVČ

If the OSVČ was a VAT payer:

• a final VAT return must be filed,
• it is necessary to deregister from VAT,
• any VAT adjustments related to assets must be addressed.

Archiving documents

• business documents must be kept even after ending OSVČ,
• usually for at least 5–10 years depending on the type of document,
• this obligation applies even if you are no longer in business.

What you no longer have to do after ending OSVČ

• pay new insurance advances,
• issue invoices or receive business income,
• keep ongoing business records.

By completing all of these steps, the OSVČ is fully closed administratively and financially, and there is no risk of future penalties or arrears.

Yes, it is possible to resume OSVČ, but it depends on whether the OSVČ was only suspended or permanently cancelled. The procedure differs significantly in these two cases.

Resuming a suspended OSVČ

If the OSVČ was only suspended:

• the business can be resumed at any time,
• it is sufficient to notify the end of the suspension to the Trade Licensing Office,
• there is no need to set up a new trade or apply for a new Company ID (IČO).

Resuming a suspended OSVČ is administratively quick and simple.

Resuming a cancelled OSVČ

If the OSVČ was permanently cancelled:

• the OSVČ cannot be “restored” retroactively,
• it is necessary to start the business again,
• the trade must be re-registered,
• re-registration with the authorities is required.

In practice, this is a new start of OSVČ, even if you continue in the same line of business as before.

What stays the same and what changes

• the Company ID (IČO) usually does not change,
• the business history remains in public registers,
• tax and insurance obligations start again from the new beginning.

What to watch out for when resuming OSVČ

• timely registration for health and social insurance,
• correct determination of whether the activity is main or secondary,
• new obligations regarding advance payments.

If you are not sure whether it is better to suspend or cancel OSVČ, a simple rule applies: suspension is always more flexible.

Changing the business activity of an OSVČ means that you start performing a different type of business activity than the one you currently have registered in the Trade Register. The change is administratively simple, but it must be officially reported.

When it is necessary to change the business activity

• you start doing business in a different field than the one registered,
• you expand your business with an additional activity,
• you stop performing the original activity and switch to a new one.

Doing business outside the registered activity is illegal and may result in fines.

How to change or add a business activity

1. submit a notification of change to the Trade Licensing Office,
2. select the new business activity (most commonly within a free trade),
3. if required, provide proof of professional qualification (for craft, regulated, and licensed trades),
4. have the change confirmed by an entry in the Trade Register.

The change can be made:

• in person at the Trade Licensing Office,
• electronically (Citizen Portal, data box),
• via Czech POINT.

Changing the activity under a free trade

If you operate under a free trade:

• you can add additional activities at any time,
• the change is quick and requires no complex proof,
• usually no administrative fee is charged.

Change under a craft, regulated, or licensed trade

• it is necessary to provide proof of education or professional experience,
• in some cases, an official decision is required,
• the process may take longer than with a free trade.

What to watch out for

• changing the business activity does not automatically affect taxes and insurance,
• the new activity may affect the expense flat rate or VAT,
• the change must be made before starting the new activity.

Changing a business activity is a common step, but it must always be officially reported to ensure the business complies with the law.

A change of address for an OSVČ must be officially reported if the address of the place of business, registered seat, or residence listed in official registers changes. Simply moving is not sufficient – the change must be reported to the authorities.

Which address an OSVČ can change

• the address of the place of business,
• the residential address (if it is the same as the place of business),
• the address of a business premises (if one is registered).

Most commonly, this concerns a change of the place of business registered in the Trade Register.

How to change the OSVČ address step by step

1. Report the change to the Trade Licensing Office
   – in person, online (Citizen Portal, data box), or via Czech POINT.
2. Provide proof of the relationship to the new address
   – e.g. property ownership or the owner’s consent.
3. Check that the change has been updated in the Trade Register.

The change is entered into the public register and is free of charge.

Which other authorities must be notified of the change

• Health insurance company,
• Czech Social Security Administration (ČSSZ),
• Tax Office (especially if the locally competent office changes).

Information is not transferred automatically between authorities, so the change must be reported separately.

By when the address change must be reported

• usually within 15 days of the change,
• it is recommended to handle the change without unnecessary delay.

What to watch out for

• doing business at an unreported address may cause problems during an inspection,
• a change of address may affect the locally competent tax office,
• the address stated on invoices must match reality.

Properly reporting a change of address ensures that the OSVČ remains fully compliant with legal regulations and avoids unnecessary complications.

New OSVČ most often make mistakes due to lack of knowledge or underestimating their obligations, not intentionally. However, these mistakes can lead to fines, additional tax assessments, or unnecessary financial losses, often already in the first year of business.

Failure to notify obligations to authorities

• late registration with the health insurance company and ČSSZ,
• failure to report the start or change of business activity,
• forgetting obligations related to secondary self-employment.

This mistake often results in retroactive payment of insurance contributions.

Misunderstanding taxes and contributions

• the belief that “if I have no income, I don’t have to deal with anything,”
• misunderstanding the difference between tax and insurance contributions,
• failing to plan for future advance payments.

Invoicing mistakes

• missing mandatory details on invoices,
• invoicing without a Company ID (IČO),
• incorrect handling of advances and balance payments,
• incorrect determination of when income arises.

Failing to monitor VAT and cross-border transactions

• exceeding the VAT threshold without registration,
• ignoring the identified person regime,
• purchasing services from abroad without addressing VAT.

This is one of the most expensive mistakes OSVČ can make.

Poor income and expense record-keeping

• mixing personal and business finances,
• failing to record cash transactions,
• lost or missing documents,
• inconsistencies between invoices and bank records.

Underestimating the need for a financial reserve

• no reserve for taxes and contributions,
• spending money that will later be needed for tax payments,
• problems when filing the first tax return.

Failing to deal with changes and suspensions in time

• not reporting suspension of OSVČ,
• obligations continuing even though the business is no longer active,
• unnecessary advances and debts arising.

Most of these mistakes can be avoided with basic knowledge of obligations and timely communication with authorities. The first year of business is crucial in this respect.

OSVČ very often forget to report changes and relevant facts to authorities that have a direct impact on taxes, insurance contributions, or their legal status. These omissions are a common cause of penalties, additional tax assessments, and unnecessary problems.

Starting, suspending, and ending business activity

• late or missing notification of starting OSVČ,
• forgetting to report suspension of OSVČ,
• failure to report termination of business activity to insurance companies and the Czech Social Security Administration.

Authorities then consider the OSVČ still active and unnecessary obligations to pay contributions arise.

Changes in personal and business details

• change of residential address or place of business,
• change of business activity or trade,
• establishment or closure of a business premises,
• change of the bank account used for business purposes.

These changes are not transferred automatically between all authorities.

Change between main and secondary self-employment

• starting or ending employment,
• change of personal status (e.g. parental leave, pension),
• failure to report a transition from secondary to main OSVČ activity.

This has a direct impact on advance payments and insurance contributions.

VAT and cross-border transactions

• exceeding the VAT threshold without registration,
• failure to report obligations as an identified person,
• purchasing services from abroad without addressing VAT.

This is one of the most common and most expensive mistakes OSVČ make.

Other frequently forgotten obligations

• change of health insurance company,
• starting or ending cooperation with employees,
• registering for or terminating the lump-sum tax regime.

What to watch out for

• authorities do not monitor changes on behalf of OSVČ,
• lack of knowledge is not an excuse,
• most notifications have short statutory deadlines.

The rule is simple: any change that affects your business should be reported to authorities rather than ignored.

A tax inspection is not automatically a problem or a punishment. It is a standard procedure used by the tax office to verify whether an OSVČ is fulfilling their tax obligations correctly. The key is to stay calm, cooperate, and have your documentation in order.

What to do immediately after being notified of an inspection

• carefully read the notification of the inspection,
• find out which period and which taxes are being audited,
• check the stated deadlines and requested documents,
• prepare all required documents on time.

An inspection is usually not “random” – it typically has a specific reason (inconsistencies, data matching, foreign transactions, VAT, etc.).

How to prepare for a tax inspection

• prepare your tax records or accounting,
• gather invoices, receipts, and bank statements,
• document both income and expenses,
• prepare contracts, orders, and client communication,
• for VAT, also prepare VAT returns, control statements, and recapitulative statements.

Documents should be clear, complete, and logically organized.

How to behave during the inspection

• cooperate and communicate factually and calmly,
• answer truthfully, but only what you are asked,
• do not provide unnecessary information beyond the questions,
• have everything confirmed in writing.

You have the right to request time to provide additional documents and do not have to respond immediately.

When it is worth involving an accountant or tax advisor

• if the inspection is more complex (VAT, foreign transactions),
• if you are unsure about the correctness of your procedures,
• if there is a risk of significant additional tax assessments.

A tax advisor can represent the OSVČ during the inspection, which significantly reduces the risk of mistakes.

What you should definitely not do

• ignore requests from the tax office,
• conceal or retroactively “adjust” documents,
• argue or react emotionally,
• lie or invent answers.

How a tax inspection usually ends

• without findings – everything is in order,
• with minor findings and corrections,
• with additional tax assessment and possible penalties.

Most inspections are resolved without dramatic consequences if the OSVČ has their records in order.

The basic rule is: don’t be afraid of inspections, but be prepared.

Avoiding fines and penalties as an OSVČ is possible if the entrepreneur understands their basic obligations, keeps track of deadlines, and responds to authorities on time. Most penalties do not arise from intent, but from oversights or delays.

Meet deadlines and due dates

• file your tax return on time,
• submit statements for the health insurance company and ČSSZ within the deadline,
• pay advance payments and balances no later than the due date.

Even a one‑day delay can result in a fine or late‑payment interest.

Report all changes on time

• start, suspension, or termination of OSVČ,
• change of address, business activity, or status (main × secondary activity),
• changes related to VAT and cross‑border transactions.

An unreported change is a common reason for retroactive tax assessments.

Keep clear and complete records

• record all income and payments,
• store and archive documents and invoices,
• separate personal and business finances.

Disorganized records significantly increase the risk of errors during an audit.

Pay close attention to VAT and foreign transactions

• monitor the threshold for mandatory VAT registration,
• address the identified person regime in time,
• invoice correctly for foreign transactions (EU / non‑EU).

VAT mistakes are among the most strictly penalized.

Respond to requests from authorities

• do not ignore letters or data‑box messages,
• respond within the stated deadlines,
• if you cannot meet a deadline, request an extension in advance.

Silence is always worse than a late but proactive response.

When professional help is worth it

• for VAT and foreign contracts,
• during a tax audit,
• if you are unsure about the correct procedure.

An accountant or tax advisor often saves more money than they cost.

One basic rule always applies: if you are unsure, ask sooner rather than letting the authorities deal with it later.

An OSVČ can operate even without income, but this does not mean that no obligations automatically arise. It mainly depends on whether it is a main or secondary activity and how long this situation lasts.

If an OSVČ has no income in the short term

• this is not a problem if it is a temporary situation (start‑up phase, lack of contracts),
• the OSVČ is still considered active,
• obligations towards authorities do not automatically cease.

Impact on taxes

• if there is no income, no income tax arises,
• however, a tax return usually still has to be filed (with zero values),
• a loss or zero income is not a reason for not filing a return.

Health and social insurance

The situation differs here:

• a main OSVČ must pay minimum health insurance, even if they have no income,
• social insurance is usually not paid if the profit is zero,
• for a secondary OSVČ, when there is no income, no insurance contributions are usually paid.

Health insurance is the most common issue for OSVČ without income.

When to consider suspending OSVČ

• if you know you will not have income for a longer period,
• if you want to avoid paying unnecessary advances,
• if business activity is not actually taking place.

Suspending OSVČ is in these cases often the most reasonable solution.

What you should definitely not do

• ignore health insurance obligations,
• think that “if I earn nothing, I don’t have to deal with anything,”
• fail to report long‑term inactivity to the authorities.

Even an OSVČ without income can quickly incur insurance debt if the situation is not addressed in time.

Summary

• an OSVČ may have zero income,
• income tax is not paid, but obligations remain,
• the main risk is health insurance,
• in case of longer inactivity, it is advisable to suspend OSVČ.

A business loss for an OSVČ is not a problem or a violation of the law. It simply means that your expenses were higher than your income. What matters is knowing how to handle a loss for tax purposes and what impact it has on other obligations.

Impact of a loss on income tax

• when you have a loss, you do not pay income tax,
• however, a tax return must still be filed,
• the loss must be properly reported in the tax return.

A loss itself is not a reason for a penalty.

Using a tax loss in future years

A tax loss can be used by:

• offsetting it against profits in future years,
• typically for up to 5 subsequent years,
• thereby reducing future tax liability.

This is the main advantage of a loss – it can “pay back” in future years.

Health and social insurance in the case of a loss

• a tax loss does not mean zero insurance contributions,
• a main OSVČ must pay minimum health insurance,
• social insurance is usually not paid when there is a loss,
• for a secondary OSVČ, no insurance is usually paid.

Health insurance is most often the main cost that remains for an OSVČ even in the case of a loss.

When a loss becomes a problem

• if it occurs long term,
• if there is no real business intention,
• if the OSVČ only generates expenses without a prospect of income.

Long-term losses may attract the attention of the tax office.

What to consider when operating at a loss

• reassess whether the business makes economic sense,
• consider suspending the OSVČ,
• optimize expenses or change the business model.

A one-time loss is common, but long-term unprofitability should be actively addressed.

Preparing for the first year of business as an OSVČ is crucial. The first year is when the most mistakes, stress, and financial problems occur, because new entrepreneurs often underestimate taxes, insurance contributions, administration, and cash flow.

1. Set up your finances from the very beginning

• create a reserve for taxes and contributions (money that you do not treat as “your profit”),
• keep in mind that your first tax return will come retroactively,
• separate business and personal money (ideally with a separate account or clear records).

The most common beginner mistake is spending money that will later be needed for taxes.

2. Clarify your tax and insurance regime

• find out whether lump‑sum expenses or actual expenses are more advantageous for you,
• verify whether you operate as a main or secondary OSVČ,
• monitor your obligations related to health and social insurance.

Incorrect setup at the very beginning can become expensive very quickly in the first year.

3. Set up simple but honest record‑keeping

• record every income (bank transfers and cash),
• store invoices and documents systematically,
• track when income actually arises, not when you issue an invoice.

You do not need a complicated system, but records must be clear and traceable.

4. Pay attention to VAT and foreign transactions

• monitor the threshold for mandatory VAT registration,
• be careful with services from abroad (Google, Facebook, software),
• verify when the obligation of an identified person arises.

VAT is the area where OSVČ make the most expensive mistakes in their first year.

5. Report changes and communicate with authorities

• report the start, suspension, and any changes in time,
• respond to requests from the tax office,
• do not leave problems “for later”.

Active communication is always better than silence and waiting for penalties.

6. Prepare yourself mentally as well

• expect irregular income,
• not every month will be profitable,
• the first year is mainly about learning and setting up systems.

Successful OSVČ are not those who have no problems, but those who solve them early and systematically.

If you take time to prepare at the beginning, your first year of business will be much calmer and free of unnecessary mistakes.